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Full text of "California 2013 Plumbing Code"

2013 

California 
Plumbing 
Code 

California Code of Regulations 
Title 24, Part 5 

California Building 
Standards Commission 

Based on 2012 Uniform Plumbing Code 




January 1, 2014 

(For Errata and Supplements, See History Note Appendix) 




Copyright to 2012 UPC- Held by 



International Association of Plumbing and Mechanical Officials 
4755 East Philadelphia Street 
Ontario, California 91761-2816 



Copyright 1 to all California State Provisions 
Held By 



California Building Standards Commission 
2525 Natomas Park Drive, Suite 130 
Sacramento, CA 95833-2936 



First Printing, July 1, 2013 
Printed in The United States 



185 



PREFACE 



This document is the 5th of 12 Parts of the official triennial compilation and publication of the adoptions, amendments and 
repeal of administrative regulations to California Code of Regulations, Title 24, also referred to as the California Building 
Standards Code. Part 5 is known as the California Plumbing Code and incorporates, by adoption, the 2012 edition of the 
Uniform Plumbing Code of the International Association of Plumbing and Mechanical Officials with the California amend- 
ments. 

The California Building Standards Code is published in its entirety every three years by order of the California legislature, 
with supplements published in intervening years. The California legislature delegated authority to various State agencies, 
boards, commissions and departments to create building regulations to implement the State's statutes. These building regula- 
tions or standards, have the same force of law, and take effect 180 days after their publication unless otherwise stipulated. The 
California Building Standards Code applies to occupancies in the State of California as annotated. 

A city, county or city and county may establish more restrictive building standards reasonably necessary because of local 
climatic, geological or topographical conditions. Findings of the local condition(s) and the adopted local building standard(s) 
must be filed with the California Building Standards Commission to become effective and may not be effective sooner than 
the effective date of this edition of California Building Standards Code. Local building standards that were adopted and applic- 
able to previous editions of the California Building Standards Code do not apply to this edition without appropriate adoption 
and the required filing. 

To familiarize yourself with the format of this code, it is suggested that users review the following contents: 
• How To Distinguish Model Code Language From California Amendments; and 
e Matrix Adoption Tables 

Should you find publication (e.g., typographical) errors or inconsistencies in this code or wish to offer comments toward 
improving its format, please address your comments to: 

California Building Standards Commission 
2525 Natomas Park Drive, Suite 130 
Sacramento, CA 95833-2936 

Phone: (916) 263-0916 
FAX: (916) 263-0959 

Web Page: www.bsc.ca.gov 



Hi 



ACKNOWLEDGEMENTS 



The 2013 California Building Standards Code (Code) was developed through the outstanding collaborative efforts of the 
Department of Housing and Community Development, the Division of State Architect, the Office of the State Fire Marshal, 
the Office of Statewide Health Planning and Development, the California Energy Commission, the California Department of 
Public Health, the California State Lands Commission, the Board of State and Community Corrections, and the California 
Building Standards Commission (Commission). 

This collaborative effort included the assistance of the Commission's Code Advisory Committees and many other volunteers 
who worked tirelessly to assist the Commission in the production of this Code. 



Governor Edmund G. Brown Jr. 



Members of the Building Standards Commission 



Secretary Anna Caballaro - Chair 
James Barthman - Vice-Chair 



Stephen Jensen 
Randy Twist 
Richard Sawhill 
Kent Sasaki 



Rose Conwy 
Sheila Lee 



Richard Sierra 
Steven Winkel 



Erich Mikiten 



Jim McGowan - Executive Director 
Michael L. Near man - Deputy Executive Director 



iv 



For questions on California state agency amendments, please refer to the contact list on the following page. 



California Code of Regulations Title 24 

California Agency information Contact List 



Board of State and Community Corrections 

www. bscc. ca.gov (916) 445-50 73 

Local Adult Jail Standards 
Local Juvenile Facility Standards 

California Building Standards Commission 

www. bsc. ca.gov (916) 263-0916 

California Energy Commission 

www.energyxa.gov Energy Hotline (800) 772-33 00 

Building Efficiency Standards 
Appliance Efficiency Standards 
Compliance Manual/Forms 

California State Lands Commission 

www.slc.ca.gov (562) 499-6312 

Marine Oil Terminals 

California State Library 

www. library. ca.gov (916) 654-0266 

De partment of Consumer A ffairs: 
Acupuncture Board 

www, acupuncture, ca.gov (916) 515-5200 

Office Standards 

Board of Pharmacy 

www.pharmacy. ca.gov (916) 574- 7900 

Pharmacy Standards 

Bureau of Bartering and Cosmetology 

www. barbercosmo.ca.gov (916) 952-52 1 

Barber and Beauty Shop, 
and College Standards 

Bureau of Electronic and Appliance Repair, 
Home Furnishings and Thermal Insulation 

www. bearhfti. ca.gov (916) 999-2041 

Insulation Testing Standards 

Structural Pest Control Board 

www.pestboard. ca.gov (800) 73 7-81 88 

Structural Standards 

Veterinary Medical Board 

www. vmb. ca.gov (916) 263-2610 

Veterinary Hospital Standards 



De partment of Food and Agriculture 

www.cdfa.ca.gov 

Meat & Poultry Packing Plant Standards (916) 654-0509 
Dairy Standards (916) 654-0773 

Department of Housing and Community Development 

www.hcdxa.gov (916) 445-94 71 

Residential - Hotels, Motels, Apartments, 
Single-Family Dwellings; and 
Permanent Structures in Mobilehome & 
Special Occupancy Parks 

(916) 445-3338 

Factory-Built Housing, Manufactured Housing & 

Co mm ercia I Modu la r 

Mobilehome - Permits & Inspections 
Northern Region - (916) 255-2501 
Southern Region - (951) 782-4420 

(916) 445-9471 
Employee Housing Standards 

Department of Public Health 

www. dph. ca.gov (916) 449-566 1 

Organized Camps Standards 
Public Swimming Pools Standards 

Division o f the State Architect 

www.dgs.ca.gov/dsa (916) 445-8100 

Access Compliance 
Structural Safety 

Public Schools Standards 
Essential Services Building Standards 
Community College Standards 

State Historical Building Safety Board 

Alternative Building Standards 

Office of Statewide Health Planning and Development 

www. oshpd. ca.gov (916) 440-8356 

Hosp Hal Stan dards 
Skilled Nursing Facility Standards & 
Clinic Standards 
Permits 

Office of the State Fire Marshal 

osfmJire.ca.gov .(916) 445-8200 

Code Development and Analysis 
Fire Safety Standards 



v 



UPC FOREWORD 

Not Adopted by The State of California 



The advantages of a uniform plumbing code adopted by various local jurisdictions has long been recognized. Disorder in the 
industry as a result of widely divergent plumbing practices and the use of many different, often conflicting, plumbing codes 
by local jurisdictions influenced the Western Plumbing Officials Association (now the Internationa] Association of Plumbing 
and Mechanical Officials [lA PMO]) to form a committee of plumbing inspectors, master and journeyman plumbers, and sani- 
tary and mechanical engineers, assisted by public utility companies and the plumbing industry to create a basic plumbing 
document for general use. The product of this effort, the first edition of the Uniform Plumbing Code" (UPC ) was officially 
adopted by 1APMO in 1 945. The widespread use of this code over the past five decades by jurisdictions throughout the United 
States and internationally is testament to its merit. 

With the publication of the 2003 Edition of the Uniform Plumbing Code'\ another significant milestone was reached. For the 
first time in the history of the United States, a plumbing code was developed through a true consensus process. The 2012 
edition represents the most current approaches in the plumbing field and is the fourth edition developed under the ANSI 
consensus process. Contributions to the content of the code were made by every segment of the built industry, including such 
diverse interests as consumers, enforcing authorities, installers/maintainers, insurance, labor, manufacturers, research/stan- 
dards/testing laboratories, special experts, and users. 

The UPC is designed to provide consumers with safe and sanitary plumbing systems while, at the same time, allowing lati- 
tude for innovation and new technologies. The public at large is encouraged and invited to participate in lAPMO's open 
consensus code development process. This code is updated every three years. A code development timeline and other relevant 
information is available at lAPMO's website at www.iapmo.org. 

The Uniform Plumbing Code* is dedicated to all those who, in working to achieve "the ultimate plumbing code," have 
unselfishly devoted their time, effort, and personal funds to create and maintain this, the finest plumbing code in existence 
today. 

The 2012 Uniform Plumbing Code is supported by the American Society of Sanitary Engineering (ASSE), the Mechanical 
Contractors Association of America (MCA A), the Plumbing-Heating-Cooling Contractors National Association (PHCC-NA), 
the United Association (UA), and the World Plumbing Council (WPC). The presence of these logos, while reflecting support, 
does not imply any ownership of the copyright to the UPC, which is held exclusively by IAPM.O. Further, the logos of these 
associations indicates the support of lAPMO's open, consensus process being used to develop lAPMO's codes and standards. 

The addresses of the organizations are as follows: 

ASSE - 901 Canterbury Road, Suite A • Westlake, OH 44145-7201 • (440) 835-3040 
MCAA - 1385 Piccard Drive * Rockville, MD 20850 • (301) 869-5800 
PHCC-NA - PO Box 6808 • Falls Church, VA 22046 * (800) 533-7694 
UA - Three Park Place • Annapolis, MD 21401 • (410) 269-2000 

WPC - World Plumbing Council Secretariat - P.O. Box 810 • Lafayette, IN 47902 USA 



vi 



TABLE OF CONTENTS 



CHAPTER 1 DIVISION I 

CALIFORNIA ADMINISTRATION . . .1 

1.1.0 General .3 

1.1.1 Title 3 

1.1.2 Purpose 3 

1.1.3 Scope 3 

1.1.4 Appendices 4 

1.1.5 Referenced Codes 4 

1.1.6 Non-Building Standards, Orders, 

and Regulations 4 

1.1.7 Order of Precedence and Use 4 

1 .1 .8 City, County, or City and 
County Amendments, 

Additions or Deletions .4 

1 .1 .9 Effective Date of this Code 5 

1.1.10 Availability of Codes 5 

1.1.11 Format 5 

1.1.12 Validity ....5 

1 .2.0 Building Standards Commission . . .5 

1 .2.2 Alternative Materials, Design, 
and Methods of Construction 

and Equipment 6 

1 .2.3 Adopting Agency Identification 6 

1 .3.0 Board of State and Community 

Corrections 6 

1 .3.2 Adopting Agency Identification 6 

1 .4.0 Department of Consumer Affairs . . .6 
1 .4.2 Adopting Agency Identification 6 

1 .5.0 Reserved for California 

Energy Commission 6 

1 .6.0 Department of Food 

and Agriculture 6 

1 .6.2 Adopting Agency Identification 6 

1 .7.0 Department of Public Health 6 

1.7.2 Adopting Agency Identification 7 

1 .8.0 Department of Housing and 
Community Development 7 

1.8.1 Purpose 7 

1.8.2 Authority and Abbreviations 7 

1.8.3 Local Enforcing Agency 8 

1 .8.4 Permits, Fees, Applications, 

and Inspections . 9 

1 .8.5 Right of Entry for Enforcement 9 

1.8.6 Local Modification by 

Ordinance or Regulation 9 

1 .8.7 Alternate Materials, Designs, Tests, 
and Methods of Construction 10 

1.8.8 Appeals Board 10 



1.8.9 Unsafe Buildings or Structures . . . .11 

1.8.10 Other Building Regulations . . .11 

1 .9.0 Division of the State Architect . . . .12 

1 .9.1 Division of the State Architect - 
Access Compliance .12 

1 .9.2 Division of the State Architect - 
Structural Safety 12 

1.10.0 Office of Statewide Health Planning 
and Development 12 

1.10.1 OSHPD 1 12 

1.10.2 OSHPD 2 13 

1.10.3 OSHPD 3 13 

1.10.4 OSHPD 4 13 

1.11.0 Office of the State Fire Marshal . . .14 

1.11.1 SFM-Office of the 

State Fire Marshal .14 

1.11.2 Duties and Powers of 

the Enforcing Agency 15 

1.11.3 Construction Documents 16 

1.11.4 Fees 17 

1.11.5 Inspections 18 

1.11.6 Certificate of Occupancy .18 

1.11 .7 Temporary Structures and Uses . . .18 

1.11.8 Service Utilities 18 

1.11.9 Stop Work Order . . . 18 

1.11.10 Unsafe Buildings, Structures, 

and Equipment 18 

1.11.11 Adopting Agency Identification ... .18 
1.12.0 Reserved for the State Librarian . .18 

1.13.0 Department of Water 

Resources (DWR) 18 

1.13.1 Application 18 

1.13.2 Application 18 

1 .13.3 Adopting Agency Identification . . . .18 

1.14.0 Reserved for the State 

Lands Commission 18 

CHAPTER 1 DIVISION il 

ADMINISTRATION 19 

101.0 General 19 

101.1 Title 19 

101.2 Scope 19 

101.3 Purpose .19 

101.4 Conflicts Between Codes .19 

101.5 Plans Required 19 

1 01 .6 Repairs and Alterations 19 

101.7 Maintenance .19 

101.8 Existing Construction .19 



2013 CALIFORNIA PLUMBING CODE 



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101.9 Additions, Alterations, or 

Repairs 19 

101.10 Appendices 19 

101.11 Application to Existing 

Plumbing System 19 

102.0 Organization and Enforcement . . . .20 

102.1 Authority Having Jurisdiction 20 

1 02.2 Duties and Powers of the 
Authority Having Jurisdiction 20 

102.3 Board of Appeals 21 

102.4 Violations 21 

102.5 Penalties 21 

103.0 Permits and Inspections 21 

103.1 Permits Required 21 

103.2 Application for Permit 21 

103.3 Permit Issuance 21 

103.4 Fees 22 

103.5 Inspections 23 

103.6 Connection Approval .24 

103.7 Unconstitutional 24 

103.8 Validity 24 

Table 103.4 Plumbing Permit Fees ...... 25 

CHAPTER 2 DEFINITIONS 27 

201.0 General 29 

201.1 Applicability 29 

202.0 Definition of Terms 29 

202.1 General 29 

CHAPTER 3 GENERAL REGULATIONS 41 

301 .0 Materials - Standards and 
Alternates 43 

301.1 Minimum Standards 43 

301 .2 Alternate Materials and Methods 

of Construction Equivalency .43 

301 .3 Flood Hazard Areas 43 

301 .4 Alternative Engineered Design ... .44 

301 .5 One- and Two-Family Dwellings . . .44 

302.0 Iron Pipe Size (IPS) Pipe 44 

302.1 General .44 

303.0 Disposal of Liquid Waste 44 

303.1 General 44 

304.0 Connections to Plumbing 

System Required 44 

304.1 General 44 

305.0 Damage to Drainage System 

or Public Sewer 44 

305.1 Unlawful Practices 44 

306.0 Industrial Wastes .44 



306.1 Detrimental Wastes 44 

306.2 Safe Discharge 44 

307.0 Location 45 

307.1 System 45 

307.2 Ownership 45 

308.0 Improper Location 45 

308.1 General 45 

309.0 Workmanship 45 

309.1 Engineering Practices 45 

309.2 Concealing Imperfections 45 

309.3 Burred Ends 45 

309.4 Installation Practices 45 

31 0.0 Prohibited Fittings and 

Practices 45 

310.1 Fittings 45 

310.2 Drainage and Vent Piping 45 

310.3 Waste Connection 45 

310.4 Use of Vent and Waste Pipes 45 

310.5 Obstruction of Flow 45 

310.6 Dissimilar Metals . 45 

310.7 Direction of Flow 45 

310.8 Screwed Fittings 45 

310.12 Services/Systems and Utilities ... .45 

311.0 Independent Systems 45 

311.1 General 45 

312.0 Protection of Piping, Materials, 

and Structures 45 

312.1 General 45 

312.2 Installation 46 

312.3 Building Sewer and Drainage 

Piping 46 

312.4 Corrosion, Erosion, and 
Mechanical Damage .46 

312.5 Protectively Coated Pipe 46 

312.6 Freezing Protection 46 

312.7 Fire-Resistant Construction 46 

312.8 Waterproofing of Openings 46 

312.9 Steel Nail Plates 46 

312.10 Sleeves 46 

312.11 Structural Members 46 

312.12 Rodentproofing .46 

313.0 Hangers and Supports 46 

313.1 Suspended Piping 46 

313.2 Piping Support 46 

313.3 Underground Piping 46 

313.4 Strength 46 

313.5 Piping, Fixtures, Appliances, 

and Appurtenances 46 

313.6 Hanger Rod Sizes 46 



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2013 CALIFORNIA PLUMBING CODE 



Table 313.6 Hanger Rod Sizes 46 

313.7 Gas Piping 46 

314.0 Trenching, Excavation, and 

Backfill .47 

314.1 Trenches .47 

314.2 Tunneling and Driving 47 

314.3 Open Trenches 47 

314.4 Excavations 47 

315.0 Joints and Connections ........ .47 

315.1 Unions 47 

31 5.2 Prohibited Joints and 
Connections 47 

316.0 Increasers and Reducers 47 

316.1 General 47 

317.0 Food-Handling Establishments . . . .47 

317.1 General 47 

318.0 Test Gauges 47 

318.1 General 47 

318.2 Pressure Tests (10 psi or less) ... .47 

31 8.3 Pressure Tests (greater than 

10 psi to 100 psi) 47 

318.4 Pressure Tests (exceeding 

100 psi) 47 

318.5 Pressure Range 47 

319.0 Medical Gas and Vacuum 
Systems 47 

319.1 General ,47 

Table 313.1 Hangers and Supports .48 

CHAPTER 4 PLUMBING FIXTURES 

AND FIXTURE FITTINGS 49 

401 .0 Materials - General 
Requirements 51 

401.1 Quality of Fixtures .51 

401.2 Lead 51 

402.0 Installation .51 

402.1 Cleaning 51 

402.2 Joints 51 

402.3 Securing Fixtures 51 

402.4 Wall-Hung Fixtures 51 

402.5 Setting .51 

402.6 Flanged Fixture Connections 51 

402.7 Accessible Plumbing Facilities . . . .52 

402.8 Supply Fittings 52 

402.9 Installation 52 

402 10 Design and Installation of 

Plumbing Fixtures 52 

402.11 Slip Joint Connections 52 

402.12 Future Fixtures 52 

2013 CALIFORNIA PLUMBING CODE JANUARY 



403.0 Water-Conserving Fixtures 

and Fittings .52 

403.1 Flush Volumes .52 

403.2 Water Closets 52 

403.3 Urinals 52 

403.4 Metered Faucets . . .52 

403.5 Pre-Rinse Spray Valve 52 

403.6 Kitchen Faucets .52 

403.7 Residential Lavatory Faucets 52 

403.8 Lavatory Faucets in Common 

and Public Use Areas . 53 

404.0 Overflows . . . .53 

404.1 General 53 

405.0 Strainers and Connections 53 

405.1 Strainers 53 

405.2 Continuous Wastes 53 

406.0 Prohibited Fixtures .53 

406.1 Prohibited Water Closets 53 

406.2 Prohibited Urinals 53 

406.3 Miscellaneous Fixtures .53 

407.0 Special Fixtures and Specialties . .53 

407.1 Water and Waste Connections ... .53 

407.2 Special Use Sinks 53 

407.3 Special Use Fixtures 53 

407.4 Zinc Alloy Components 53 

408.0 Showers 53 

408.1 Application . . .53 

408.2 Water Consumption 53 

408.3 Individual Shower and 
Tub-Shower Combination 

Control Valves .53 

408.4 Waste Outlet 53 

408.5 Finished Curb or threshold . .53 

408.6 Shower Compartments .54 

408.7 Lining for Showers and 

Receptors . 54 

408.8 Public Shower Floors 55 

408.9 Location of Valves and Heads . . . .55 

408.10 Water Supply Riser 55 

409.0 Bathtubs and Whirlpool 

Bathtubs 55 

409.1 Application 55 

409.2 Waste Outlet 55 

409.3 Overflow 55 

409.4 Limitation of Hot Water in 
Bathtubs and Whirlpool 

Bathtubs 55 

409.5 Backflow Protection 55 

409.6 Installation and Access 55 

,2014 ERRATA Ix 



410.0 Bidets , .55 

410.1 Application 55 

410.2 Backf low Protection 55 

41 0.3 Limitation of Water 

Temperature in Bidets . .55 

411.0 Water Closets 55 

411.1 Water Closet Bowls 55 

411 .2 Water Closet Seats 55 

412.0 Urinals 55 

412.1 General 55 

413.0 Flushing Devices for Water 

Closets and Urinals .55 

413.1 Application 55 

413.2 Flushing Devices Required 55 

413.3 Flushometer Valves 56 

413.4 Water Supply for Flush Tanks ... .56 

413.5 Overflows in Flush Tanks 56 

414.0 Dishwashing Machines 56 

414.1 Application .56 

414.2 Backflow Protection 56 

414.3 Drainage Connection . .56 

415.0 Drinking Fountains 56 

415.1 Application , . . .56 

415.2 Where Required 56 

415.3 Drainage Connection 56 

415.4 Location .56 

416.0 Emergency Eyewash and 

Shower Equipment . .56 

416.1 Application 56 

416.2 Water Supply 56 

416.3 Installation 56 

416.4 Location 56 

416.5 Drain 56 

417.0 Faucets and Fixture Fittings 56 

417.1 Application 56 

417.2 Deck Mounted Bath/Shower 

Valves 56 

417.3 Handheld Showers 56 

417.4 Faucets and Fixture Fittings 

with Hose Connected Outlets 56 

417.5 Separate Controls for Hot and 

Cold Water 57 

418.0 Floor Drains 57 

418.1 Application 57 

418.2 Strainer 57 

418.3 Location of Floor Drains 57 

418.4 Food Storage Areas 57 

418.5 Floor Slope 57 

419.0 Food Waste Disposal Units 57 



419.1 Application .57 

419.2 Drainage Connection .57 

419.3 Water Supply 57 

420.0 Sinks > ; 57 

420.1 Application t 57 

420.2 Water Consumption 57 

420.3 Waste Outlet 57 

421 .0 Fixtures and Fixture Fittings 

for Persons with Disabilities 57 

421.1 General 57 

421 .2 Limitation of Hot Water 
Temperature for Public 

Lavatories 57 

422.0 Minimum Number of 

Required Fixtures 57 

422.1 Fixture Count 57 

422.2 Separate Facilities .58 

422.3 Fixture Requirements for 

Special Occupancies 58 

422.4 Toilet Facilities Serving 
Employees and Customers 58 

422.5 Toilet Facilities for Workers 58 

422.6 Cosmetology 58 

422.7 Cosmetology Establishments 58 

422.8 Commissaries Serving Mobile 

Food Preparation Units 58 

422.9 Employee Lavatories in Food 
Establishment 58 

Table 422.1 Minimum Plumbing Facilities 59 

Table A Occupant Load Factor 64 

Table 4-2 Minimum Plumbing Facilities 65 

CHAPTER 5 WATER HEATERS 71 

501.0 General 73 

501.1 Applicability .73 

Table 501 .1 First Hour Rating .73 

502.0 Permits 73 

502.1 General 73 

503.0 Inspection 73 

503.1 Inspection of Chimneys or Vents . .73 

503.2 Final Water Heater Inspection . . . .73 

504.0 Water Heater Requirements 73 

504.1 Location 73 

504.2 Vent 73 

504.3 Clearance 73 

504.4 Pressure-Limiting Devices 74 

504.5 Temperature-Limiting Devices ... .74 

504.6 Temperature, Pressure, and 
Vacuum Relief Devices 74 



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505.0 Oil-Burning and Other Water 
Heaters 74 

505.1 Water Heaters 74 

505.2 Safety Devices 74 

505.3 Oil-Fired Water Heaters 74 

505.4 Indirect-Fired Water Heaters .... .74 

506.0 Air for Combustion and 
Ventilation 74 

506.1 General 74 

506.2 Indoor Combustion Air 74 

506.3 Indoor Opening Size 

and Location , .75 

506.4 Outdoor Combustion Air 75 

506.5 Combination Indoor and 

Outdoor Combustion Air 77 

506.6 Engineered Installations .77 

506.7 Mechanical Combustion 

Air Supply 77 

506.8 Louvers, Grilles, and Screens ... .77 

506.9 Combustion Air Ducts . 77 

507.0 Other Water Heater 

Installation Requirements 78 

507.1 Dielectric Insulator .78 

507.2 Seismic Provisions 78 

507.3 Ground Support 78 

507.4 Drainage Pan 78 

507.5 Relief Valve Discharge 78 

507.6 Added or Converted Appliances . . .78 

507.7 Types of Gases 78 

507.8 Safety Shutoff Devices for 
Unlisted LP-Gas Appliance 

Used Indoors 78 

507.9 Use of Air or Oxygen 

Under Pressure 78 

507.10 Protection of Gas Appliances 
from Fumes or Gases other 

than Products of Combustion 78 

507.11 Process Air 78 

507.12 Flammable Vapors 78 

507.13 Installation in Garages 79 

507.14 Installation in Commercial 
Garages .79 

507.15 Installation in Aircraft Hangars ... .79 

507.16 Venting of Flue Gases 79 

507.17 Extra Device or Attachment 79 

507.18 Adequate Capacity of Piping 79 

507.19 Avoiding Strain on Gas Piping ... .79 

507.20 Gas Appliance Pressure 
Regulators .79 

507.21 Venting of Gas Appliance 
Pressure Regulators 79 



507.22 Bleed Lines for Diaphragm-Type 
Valves 79 

507.23 Combination of Appliances 80 

507.24 Installation Instructions 80 

507.25 Protection of Outdoor 

Appliances 80 

507.26 Accessibility for Service 80 

508.0 Appliances on Roofs 80 

508.1 General 80 

508.2 Installation of Appliances 

on Roofs 80 

508.3 Access to Equipment and 
Appliances on Roofs 80 

508.4 Appliances in Attics and 
Under-Floor Spaces 81 

509.0 Venting of Appliances .81 

509.1 Minimum Safe Performance ..... .81 

509.2 Connection to Venting Systems . . .81 

509.3 Design and Construction 81 

509.4 Type of Venting 

System to be Used 82 

509.5 Masonry, Metal, and 
Factory-Built Chimneys 82 

Table 509.4 Type of Venting 

System to be Used 82 

509.6 Gas Vents 84 

Table 509.6.2 Roof Pitch Height 85 

509.7 Single-Wall Metal Pipe 86 

Table 509.7.3 Clearance for Connectors 87 

509.8 Through-the-Wall 

Vent Termination 88 

509.9 Condensation Drain 89 

509. 1 Vent Connectors for 

Category I Appliances 89 

Table 509.7.3(1 ) Reduction of Clearances with 

Specified Forms of Protection ... .90 

Table 509.10.1 Minimum Thickness for 

Galvanized Steel Vent Connectors 
for Low-Heat Appliances .91 

Table 509.1 0.1 (1 ) Minimum Thickness for Steel 

Vent Connectors for Medium-Heat 
Appliances and Commercial and 
Industrial Incinerators 91 

509.11 Draft Hoods and Draft Controls . . .93 

509.12 Manually Operated Dampers 93 

509.13 Automatically Operated 

Vent Dampers 93 

509.14 Obstructions 93 

510.0 Sizing of Category I Venting 
Systems 93 

510.1 Installation .....93 



2013 CALIFORNIA PLUMBING CODE 



xi 



510.2 Additional Requirements to 
Multiple Appliance Vent 
Table 510.2(1) through 
Table 510.2(9) 95 

Table 510.2.1 Vent Connector Maximum 

Length , 96 

511.0 Direct- Vent Appliances 98 

511.1 General 98 

Table 510.1.2(1) Type B Double-Wall Gas Vent ...100 

Table 510.1.2(2) Type B Double-Wall Gas Vent ...103 

Table 510.1.2(3) Masonry Chimney 105 

Table 510.1.2(4) Masonry Chimney 107 

Table 510.1.2(5) Single-Wall Metal Pipe or 

Type B Asbestos Cement Vent . . .109 

Table 510.1.2(6) Exterior Masonry Chimney 110 

Table 510.2(1) Type B Double-Wall Vent 111 

Table 510.2(2) Type B Double-Wall Vent 115 

Table 510.2(3) Masonry Chimney 117 

Table 510.2(4) Masonry Chimney 119 

Table 510.2(5) Single-Wall Metal Pipe or 

Type B Asbestos Cement Vent . . ,121 

Table 510.2(6) Exterior Masonry Chimney 121 

Table 510.2(7) Exterior Masonry Chimney 122 

Table 510.2(8) Exterior Masonry Chimney 123 

Table 510.2(9) Exterior Masonry Chimney 124 

CHAPTER 6 WATER SUPPLY AND 

DISTRIBUTION 125 

601.0 Hot and Cold Water Required ...127 

601.1 General 127 

601 .2 Identification of a Potable and 
Nonpotable Water System 127 

Table 601 .2.2 Minimum Length of Color 

Field and Size of Letters 128 

601 .3 Schools of Cosmetology and 
Cosmetological Establishments . . .128 

601.4 Meat and Poultry 

Processing Plants 128 

601 .5 Collection Centers and Facilities . .128 

601.6 Renderers 128 

601 .7 Horse Meat and Pet Food 
Establishments 128 

602.0 Unlawful Connections 129 

602.1 Prohibited Installation 129 

602.2 Cross-Contamination 129 

602.3 Backflow Prevention 129 

602.4 Approval by Authority 129 

603.0 Cross-Connection Control 129 

603.1 General 129 



603.2 Approval of Devices or 
Assemblies 129 

603.3 Backflow Prevention Devices, 
Assemblies, and Methods 129 

Table 603.2 Backflow Prevention Devices, 

Assemblies, and Methods 130 

Table 603.3.1 Minimum Air Gaps for Water 

Distribution 132 

603.4 General Requirements 132 

603.5 Specific Requirements 133 

604.0 Materials 134 

604.1 Pipe, Tube, and Fittings 134 

Table 604.1 Materials for Building Supply 
and Water Distribution Piping 
and Fittings 136 

604.2 Copper Tube 136 

604.3 Hard-Drawn Copper Tubing 136 

604.4 Flexible Copper Connectors 136 

604.5 Cast-Iron Fittings 137 

604.6 Malleable Iron Fittings 137 

604.7 Previously Used Piping and 

Tubing 137 

604.8 Epoxy Coating 137 

604.9 Plastic Materials 137 

604.10 Solder .137 

604.11 Lead Content 137 

604.12 Flexible Corrugated Connectors . .137 

604.13 Water Heater Connectors .137 

605.0 Joints and Connections 137 

605.1 Asbestos-Cement Pipe 

and Joints 137 

605.2 Brass Pipe and Joints 137 

605.3 Copper Pipe, Tubing, and Joints . .137 

605.4 CPVC Plastic Pipe and Joints ...138 

605.5 Ductile Iron Pipe and Joints 139 

605.6 Galvanized Steel Pipe 

and Joints 139 

605.7 PE Plastic PipeATubing 

and Joints 139 

605.8 PE-AL-PE Plastic PipeATubing 

and Joints 139 

605.9 PE-RT 140 

605.10 PEX Plastic Tubing and Joints . . .140 

605.11 PEX-AL-PEX Plastic Tubing 

and Joints 140 

605.12 Polypropylene (PP) Piping 

and Joints 140 

605.13 PVC Plastic Pipe and Joints 140 

605.14 Stainless Steel Pipe and Joints . .141 

605.15 Slip Joints 141 



xii 



2013 CALIFORNIA PLUMBING CODE 



605.16 Dielectric Unions 141 

605.17 Joints Between Various 

Materials .141 

606.0 Valves .141 

606.1 General 141 

606.2 Fullway Valve 141 

606.3 Multidwelling Units 141 

606.4 Multiple Openings 141 

606.5 Control Valve 141 

606.6 Accessible 141 

606.7 Multiple Fixtures 141 

607.0 Gravity Supply Tanks 142 

607.1 General 142 

607.2 Potable Water Tanks 142 

608.0 Water Pressure, Pressure 
Regulators, Pressure Relief 
Valves, and Vacuum Relief 

Valves 142 

608.1 Inadequate Water Pressure 142 

608.2 Excessive Water Pressure 142 

608.3 Expansion Tanks, 
Combination Pressure, and 
Temperature Relief Valves 142 

608.4 Pressure Relief Valves 142 

608.5 Drains 142 

608.6 Water-Heating Devices .142 

608.7 Vacuum Relief Valves 142 

609.0 Installation, Testing, Unions, 

and Location 142 

609.1 Installation 142 

609.2 Trenches 143 

609.3 Under Concrete Slab . .143 

609.4 Testing 143 

609.5 Unions 143 

609.6 Location 143 

609.7 Abutting Lot 143 

609.8 Low-Pressure Cutoff Required 
on Booster Pumps for Water 
Distribution Systems 143 

609.9 Disinfection of Potable Water 
System 143 

609.10 Water Hammer 144 

610.0 Size of Potable Water Piping ... .144 

610.1 Size 144 

610.2 Pressure Loss 144 

610.3 Quantity of Water 144 

610.4 Parallel Distribution Systems . . . .144 

610.5 Sizing per Appendices 

A and C 144 

610.6 Friction and Pressure Loss 144 



2013 CALIFORNIA PLUMBING CODE 



610.7 Conditions for Using 

Table 610.4 144 

610.8 Size of Meter and Building 

Supply Pipe Using Table 610.4 ..144 

610.9 Size of Branches 144 

Table 610.3 Water Supply Fixture Units 

(WSFU) and Minimum Fixture 
Branch Pipe Sizes 145 

Table 610.4 Fixture Unit Table for 

Determining Water Pipe and 

Meter Sizes 146 

610.10 Sizing for Flushometer Valves . . .147 

Table 610.10 Flushometer Fixture Units 
for Water Sizing Using 
Table 610.3 147 

610.11 Sizing Systems for 

Flushometer Tanks 147 

610.12 Sizing for Velocity 147 

610.13 Exceptions 147 

611.0 Drinking Water Treatment 

Units 148 

611.1 Application 148 

611.2 Air Gap Discharge 148 

611.3 Connection Tubing 148 

611.4 Sizing of Residential Softeners . .148 

Table 611 .4 Sizing of Residential Water 

Softeners 148 

612.0 Residential Fire Sprinkler 

Systems 148 

612.1 General 148 

613.0 Domestic Hot-Water 

Distribution Systems for 

Health Facilities and Clinics 148 

Table 613.1 Hot Water Use 148 

614.0 Dialysis Water-Distribution 

Systems 149 

615.0 Identification of Potable and 
Nonpotable Water Lines .149 

615.1 Uses Not Permitted 149 

615.4 Emergency Water Supply 149 

CHAPTER 7 SANITARY DRAINAGE .151 

Part I Drainage Systems 153 

701.0 Materials 153 

701.1 Drainage Piping 153 

701.2 Drainage Fittings 153 

701.3 Lead . .153 

701.4 Caulking Ferrules 153 

701.5 Soldering Bushings 153 

702.0 Fixture Unit Equivalents 153 

702.1 Trap Size 153 



xiii 



702.2 Intermittent Flow 153 

702.3 Continuous Flow 153 

Table 701.4 Caulking Ferrules .153 

Table 701 .5 Soldering Bushings 153 

Table 701.1 Materials for Drain, Waste, 

Vent Pipe and Fittings 154 

Table 702.1 Drainage Fixture Unit 

Values (DFU) 155 

Table 702.2(a) Maximum Drainage Fixture 

Units for a Trap and Trap Arm ...156 

Table 702.2(b) Discharge Capacity in Gallons 
Per Minute for Intermittent 
Flow Only 156 

703.0 Size of Drainage Piping 156 

703.1 Minimum Size 156 

703.2 Maximum Number of Fixture 

Units . 156 

703.3 Sizing per Appendix C 156 

704.0 Fixture Connections (Drainage) . .156 

704.1 Inlet Fittings 156 

704.2 Single Vertical Drainage Pipe ... .156 

704.3 Commercial Dishwashing 
Machines and Sinks 156 

705.0 Joints and Connections 156 

705. 1 ABS and ABS Co-Extruded 

Plastic Pipe and Joints . 156 

705.2 Asbestos Cement Pipe and 

Joints 156 

Table 703.2 Maximum Unit Loading and 
Maximum Length of Drainage 
and Vent Piping 157 

705.3 Brass Pipe and Joints 157 

705.4 Cast-Iron Pipe and Joints 157 

705.5 Copper Pipe (DWV) and Joints ..158 

705.6 Galvanized Steel Pipe 

and Joints 158 

705.7 PVC and PVC Co-Extruded 
Plastic Pipe and Joining 

Methods 158 

705.8 Stainless Steel Pipe and Joints . .158 

705.9 Vitrified Clay Pipe and Joints ... .159 

705.10 Special Joints 159 

705.11 Joints Between Various 

Materials 159 

706.0 Changes in Direction of 

Drainage Flow 159 

706.1 Approved Fittings 159 

706.2 Horizontal to Vertical 159 

706.3 Horizontal to Horizontal 159 

706.4 Vertical to Horizontal 159 

707.0 Cleanouts 159 



707.1 Plug ....159 

707.2 Approved .159 

707.3 Gas and Watertight . . .159 

707.4 Location 159 

Table 707.1 Cleanouts 160 

707.5 Cleaning 160 

707.6 Extension .160 

707.7 Interceptor 160 

707.8 Access 160 

707.9 Clearance 160 

707.10 Fittings 160 

707.11 Pressure Drainage Systems 160 

707.12 Countersunk Cleanout Plugs ... .160 

707.13 Hubless Blind Plugs 160 

707.14 Trap Arms 160 

708.0 Grade of Horizontal 

Drainage Piping 160 

708.1 General .160 

709.0 Gravity Drainage Required 160 

709.1 General 160 

710.0 Drainage of Fixtures Located 
Below the Next Upstream 
Manhole or Below the Main 

Sewer Level 160 

710.1 Backflow Protection 160 

710.2 Sewage Discharge 160 

710.3 Sewage Ejector and Pumps 161 

710.4 Discharge Line 161 

710.5 Size of Building Drains and 
Sewers 161 

710.6 Backwater Valves . 161 

710.7 Drainage and Venting Systems . .161 

710.8 Sump and Receiving Tank 
Construction 161 

710.9 Alarm 161 

710.10 Sump and Receiving Tank 

Covers and Vents 161 

710.11 Air Tanks 161 

710.12 Grinder Pump Ejector 161 

710.13 Macerating Toilet Systems 162 

711.0 Suds Relief 162 

711.1 General 162 

712.0 Testing 162 

712.1 Media . 162 

712.2 Water Test 162 

712.3 Air Test 162 

PartfS Building Sewers 162 

713.0 Sewer Required 162 

713.1 Where Required 162 



xiv 



2013 CALIFORNIA PLUMBING CODE 



713.2 Private Sewage Disposal 

System 162 

713.3 Public Sewer 162 

713.4 Public Sewer Availability 162 

713.5 Permit 162 

713.6 Lot 162 

713.7 Installation ...162 

714.0 Damage to Public Sewer 
or Private Sewage Disposal 
System 163 

714.1 Unlawful Practices 163 

714.2 Prohibited Water Discharge 163 

714.3 Prohibited Sewer Connection ... .163 

714.4 Commercial Food Waste 

Grinder . .163 

714.5 Tanks 163 

715.0 Building Sewer Materials 163 

715.1 Materials 163 

715.2 Joining Methods and Materials . . .163 

715.3 Existing Sewers 163 

716.0 Markings 163 

716.1 General 163 

717.0 Size of Building Sewers 163 

717.1 General 163 

717.2 Meat and Poultry 

Processing Plants 163 

Table 717.1 Maximum/Minimum Fixture 
Unit Loading on Building 
Sewer Piping 163 

718.0 Grade, Support, and Protection 

of Building Sewers 163 

718.1 Slope .163 

718.2 Support 163 

718.3 Protection from Damage 164 

719.0 Cleanouts 164 

719.1 Locations 164 

719.2 No Additional Cleanouts 1 64 

719.3 Building Sewer Cleanouts 164 

719.4 Cleaning 164 

719.5 Access 164 

719.6 Manholes 164 

720.0 Sewer and Water Pipes 164 

720.1 General .164 

721.0 Location 164 

721.1 Building Sewer 164 

721.2 Abutting Lot 164 

722.0 Abandoned Sewers and Sewage 
Disposal Facilities 164 

722.1 Building (House) Sewer 164 



722.2 Cesspools, Septic Tanks, and 
Seepage Pits 164 

Table 721 .1 Minimum Horizontal Distance 

Required from Building Sewer . . .165 

722.3 Filling 165 

722.4 Ownership 165 

722.5 Disposal Facilities 165 

723.0 Building Sewer Test 165 

723.1 General 165 

724.0 Meat and Poultry Processing 

Plant Drainage 165 

725.0 Collection Center and 

Facilities Drainage 165 

726.0 Drainage and Plumbing, 

General 165 

727.0 Emergency Sanitary Drainage . . .166 

CHAPTER 8 INDIRECT WASTES 167 

801.0 Indirect Wastes 169 

801.1 Air Gap or Air Break Required ...169 

801.2 Food and Beverage Handling 
Establishments .169 

801.3 Bar and Fountain Sink Traps ....169 

801 .4 Connections from Water 
Distribution System 169 

801.5 Sterilizers 169 

801 .6 Drip or Drainage Outlets 1 69 

802.0 Approvals 169 

802.1 General .169 

803.0 Indirect Waste Piping 169 

803.1 General 169 

804.0 Indirect Waste Receptors ...... .170 

804.1 Standpipe Receptors 170 

805.0 Pressure Drainage Connections ..170 

805.1 General 170 

806.0 Sterile Equipment 170 

806.1 General 170 

807.0 Appliances 170 

807.1 Non-Classed Apparatus 170 

807.2 Condensate Waste 170 

807.3 Undiluted Condensate Waste 170 

807.4 Domestic Dishwashing 

Machine 170 

808.0 Cooling Water 170 

808.1 General 170 

809.0 Drinking Fountains 170 

809.1 General 170 

810.0 Steam and Hot Water Drainage 
Condensers and Sumps 170 

810.1 High Temperature Discharge ... .170 



2013 CALIFORNIA PLUMBING CODE 



xv 



Table 810.1 Pipe Connections in Blowoff 

Condensers and Sumps 171 

810.2 Sumps, Condensers, and 
Intercepting Tanks 171 

810.3 Cleaning 171 

810.4 Strainers , ,171 

811.0 Chemical Wastes . 171 

811.1 Pretreatment 171 

811.2 Waste and Vent Pipes 171 

811.3 Joining Materials 171 

811.4 Access 171 

811.5 Permanent Record 171 

811.6 Chemical Vent 171 

811.7 Discharge 171 

811.8 Diluted Chemicals 171 

812.0 Clear Water Wastes 171 

812.1 General 171 

813.0 Swimming Pools 171 

813.1 General 171 

814.0 Condensate Wastes and Control . .171 

814.1 Condensate Disposal 171 

Table 814.1 Minimum Condensate 

Pipe Size 172 

814.2 Size 172 

814.3 Point of Discharge 172 

CHAPTER 9 VENTS 173 

901.0 General 175 

901.1 Vents Required 175 

901.2 Trap Seal Protection 175 

902.0 Vents Not Required 175 

902.1 Interceptor 175 

902.2 Bars, Soda Fountains, and 
Counter 175 

903.0 Materials 175 

903.1 Applicable Standards 175 

903.2 Use of Copper Tubing 175 

903.3 Changes in Direction 175 

904.0 Size of Vents 175 

904.1 Size 175 

904.2 Length 175 

905.0 Vent Pipe Grades and 
Connections 176 

905.1 Grade 176 

905.2 Horizontal Drainage Pipe . 176 

905.3 Vent Pipe Rise 176 

905.4 Roof Termination 176 

905.5 Location of Opening 176 

905.6 Common Vertical Pipe 176 



906.0 Vent Termination .176 

906.1 Roof Termination 176 

906.2 Clearance 176 

906.3 Use of Roof 176 

906.4 Outdoor Installations 176 

906.5 Joints 176 

906.6 Lead 176 

906.7 Frost or Snow Closure 176 

907.0 Vent Stacks and Relief Vents ... .176 

907.1 Drainage Stack 176 

907.2 Yoke Vent .176 

908.0 Wet Venting 176 

908.1 Vertical Wet Venting 176 

908.2 Horizontal Wet Venting for 
Bathroom Groups 177 

909.0 Special Venting for Island 

Fixtures 177 

909.1 General 177 

910.0 Combination Waste and Vent 
Systems 177 

910.1 Where Permitted 177 

910.2 Approval 177 

910.3 Vents 177 

910.4 Size 177 

910.5 Vertical Waste Pipe 177 

910.6 Cleanouts 177 

910.7 Fixtures 177 

911.0 Engineered Vent System 178 

911.1 General 178 

911.2 Minimum Requirements 178 

CHAPTER 10 TRAPS AND 

INTERCEPTORS 179 

1001.0 Traps Required 181 

1001.1 Where Required 181 

1002.0 Traps Protected by Vent Pipes . . .181 

1002.1 Vent Pipes 181 

1002.2 Fixture Traps 181 

Table 1002.2 Horizontal Lengths of Trap 

Arms 181 

1002.3 Change of Direction 181 

1002.4 Vent Pipe Opening 181 

1003.0 Traps — Described 181 

1003.1 General Requirements 181 

1003.2 Slip Joint Fittings 181 

1003.3 Size 182 

1004.0 Traps 182 

1004.1 Prohibited 182 

1004.2 Movable Parts 182 



xvi 



2013 CALIFORNIA PLUMBING CODE 



1005.0 Trap Seals 182 

1005.1 General 182 

1006.0 Floor Drain Traps 182 

1006.1 General . .182 

1007.0 Trap Seal Protection 182 

1007.1 General 182 

1008.0 Building Traps 182 

1008.1 General 182 

1009.0 Industrial Interceptors 

(Clarifiers) and Separators 182 

1009.1 Where Required 182 

1009.2 Approval .182 

1009.3 Design 182 

1009.4 Relief Vent 182 

1009.5 Location 182 

1009.6 Maintenance of Interceptors 182 

1009.7 Discharge 182 

1010.0 Slaughterhouses, Packing 
Establishments, etc 182 

1010.1 General 182 

1010.2 Meat and Poultry 

Processing Plants 182 

1010.3 Collection Centers and Facilities . .183 

1010.4 Horse Meat and Pet Food 
Establishments 183 

1010.5 Draining and Plumbing 183 

1 01 1 .0 Minimum Requirements for 

Auto Wash Racks 183 

1011.1 General 183 

1012.0 Commercial and Industrial 
Laundries 183 

1012.1 General 183 

1013.0 Bottling Establishments 183 

1013.1 General 183 

1014.0 Grease Interceptors 183 

1014.1 Where Required 183 

1014.2 Hydromechanical Grease 
Interceptors 184 

1014.3 Gravity Grease Interceptors .... .184 

Table 1014.2.1 Hydromechanical Grease 
Interceptor Sizing Using 
Gravity Flow Rates 184 

Table 1014.3.6 Gravity Grease Interceptor 

Sizing 185 

1015.0 FOG (Fats, Oils, and Greases) 
Disposal System ............. .185 

1015.1 Purpose 185 

1015.2 Scope 185 

1015.3 Components, Materials, 

and Equipment 185 



1 01 5.4 Sizing Application and 

Installation 185 

1015.5 Performance 185 

1016.0 Sand Interceptors 186 

1016.1 Discharge 186 

1016.2 Authority Having Jurisdiction ... .186 

1016.3 Construction and Size 186 

1016.4 Separate Use 186 

1017.0 Oil and Flammable Liquid 
Interceptors 186 

1017.1 Interceptors Required 186 

1017.2 Design of Interceptors 186 

CHAPTER 11 STORM DRAINAGE ...189 

1101.0 General 191 

1101.1 Where Required 191 

1101.2 Storm Water Drainage to 

Sanitary Sewer Prohibited ..... .191 

1101.3 Material Uses 191 

1101.4 Expansion Joints Required 191 

1101.5 Subsoil Drains 191 

1101.6 Building Subdrains 191 

1101.7 Areaway Drains 191 

1101.8 Window Areaway Drains 192 

1101.9 Filling Stations and Motor 
Vehicle Washing 

Establishments 192 

1101.10 Paved Areas 192 

1101.11 Roof Drainage 192 

1101.12 Cleanouts 192 

1101.13 Rainwater Sumps 192 

1102.0 Materials 192 

1102.1 Conductors 192 

1102.2 Leaders 193 

1102.3 Underground Building Storm 

Drains 193 

1102.4 Building Storm Sewers 193 

1102.5 Subsoil Drains 193 

Table 1102.5 Materials for Subsoil Drain 

Pipe and Fittings 193 

1103.0 Traps on Storm Drains and 
Leaders 193 

1103.1 Where Required .193 

1103.2 Where Not Required 193 

1103.3 Trap Size 193 

1 1 03.4 Method of Installation of 
Combined Sewer 193 

1104.0 Leaders, Conductors, and 
Connections 193 

1104.1 Improper Use 193 



2013 CALIFORNIA PLUMBING CODE 



xvii 



1104.2 Protection of Leaders .193 

1104.3 Combining Storm with 

Sanitary Drainage 193 

1105.0 Roof Drains 193 

1105.1 Materials 193 

1 1 05.2 Dome or Strainer for 

General Use 193 

1105.3 Strainers for Flat Decks 193 

1105.4 Roof Drain Flashings 193 

1106.0 Size of Leaders, Conductors, 

and Storm Drains 193 

1 1 06. 1 Vertical Conductors 

and Leaders 193 

1 1 06.2 Size of Horizontal Storm 

Drains and Sewers 193 

1106.3 Size of Roof Gutters 193 

1106.4 Side Walls Draining 

onto a Roof .193 

1107.0 Values for Continuous Flow 194 

1107.1 General 194 

1108.0 Controlled-Flow Roof Drainage . . .194 

1108.1 Application 194 

Table 1108.1(2) Controlled-Flow Maximum 

Roof Water Depth 194 

Table 1108.1(8) Distance of Scupper 

Bottoms Above Roof . .194 

1108.2 Setback Roofs 195 

1109.0 Testing .195 

1109.1 Testing Required 195 

1 1 09.2 Methods of Testing Storm 
Drainage Systems 195 

Table 1101.7 Sizing of Horizontal 

Rainwater Piping 196 

Table 1101.11 Sizing Roof Drains, Leaders, 

and Vertical Rainwater Piping . . .197 

Table 1106.3 Size of Gutters .198 

CHAPTER 12 FUEL GAS PIPING .199 

1 201 .0 Scope of Gas Piping 201 

1201.1 Coverage of Piping System 201 

1201.2 Piping System Requirements . . . .201 

1201.3 Application 201 

1202.0 General 201 

1202.1 Installation 201 

1203.0 Inspection 201 

1203.1 Inspection Notification 201 

1203.2 Excavation 201 

1203.3 Type of Inspections 201 

1203.4 Inspection Waived 201 

1204.0 Certificate of Inspection 202 



1204.1 Issuance 202 

1204.2 Gas Supplier 202 

1204.3 Unlawful .202 

1 205.0 Authority to Render 

Gas Service 202 

1205.1 Authorized Personnel 202 

1205.2 Outlets 202 

1206.0 Authority to Disconnect . .202 

1206.1 Disconnection 202 

1206.2 Notice 202 

1206.3 Capped Outlets 202 

1207.0 Temporary Use of Gas 202 

1207.1 General 202 

1208.0 Gas Piping System Design, 
Materials, and Components 202 

1208.1 Installation of Piping System 202 

1208.2 Provision for Location of 

Point of Delivery 202 

1208.3 Interconnections Between 

Gas Piping Systems 202 

1208.4 Sizing of Gas Piping Systems . . .202 

Table 1208.4.1 Approximate Gas Input for 

Typical Appliances 203 

1208.5 Acceptable Piping Materials 

and Joining Methods 203 

Table 1208.5.7.2 Specifications for Threading 

Metallic Pipe 204 

1208.6 Gas Meters . . . 206 

1208.7 Gas Pressure Regulators 206 

1208.8 Backpressure Protection 207 

1208.9 Low-Pressure Protection 207 

1208.10 Shutoff Valves 207 

1208.11 Expansion and Flexibility 207 

1209.0 Excess Flow Valve 207 

1209.1 General 207 

1210.0 Gas Piping Installation 207 

1210.1 Piping Underground 207 

1210.2 Installation of Piping 208 

Table 1210.2.4.1 Support of Piping 209 

1210.3 Concealed Piping in Buildings ...209 

1210.4 Piping in Vertical Chases ...... .209 

1210.5 Maximum Design Operating 
Pressure .210 

1210.6 Appliance Overpressure 
Protection 210 

1210.7 Gas Pipe Turns 210 

1210.8 Drips and Sediment Traps 210 

1210.9 Outlets 211 

1210.10 Branch Pipe Connection 211 

1210.11 Manual Gas Shutoff Valves 211 



2013 CALIFORNIA PLUMBING CODE 



1210.12 Prohibited Devices 211 

1210.13 Systems Containing Gas-Air 
Mixtures Outside the 

Flammable Range 211 

1210.14 Systems Containing Flammable 
Gas-Air Mixtures 211 

1210.15 Electrical Bonding and 

Grounding 211 

1210.16 Electrical Circuits 212 

1210.17 Electrical Connections 212 

1210.18 Earthquake-Actuated Gas 

Shutoff Valves .212 

1211.0 Appliance Connections to 

Building Piping 212 

1211.1 Connecting Gas Appliances 212 

1211.2 Suspended Low-Intensity 

Infrared Tube Heaters 212 

1211.3 Use of Nonmetallic Gas Hose 
Connectors 212 

1211.4 Connection of Portable 
and Mobile Industrial 

Gas Appliances 212 

1211.5 Appliance Shutoff Valves 

and Connections 213 

1211.6 Quick-Disconnect Devices 213 

1211.7 Gas Convenience Outlets 213 

1211.8 Sediment Trap 213 

1211.9 Installation of Piping 213 

1212.0 Liquefied Petroleum Gas 

Facilities and Piping 213 

1212.1 General 213 

1213.0 Pressure Testing and Inspection ..213 

1213.1 Piping Installations 213 

1213.2 Test Preparation 214 

1213.3 Test Pressure 214 

1 21 3.4 Detection of Leaks and Defects . .21 4 

1213.5 Piping System Leak Test 214 

1213.6 Purging Requirements 214 

Table 1213.6.1 Size and Length of Piping ......215 

1214.0 Interconnections Between 

Gas Piping Systems .216 

1214.1 Interconnections Supplying 
Separate Users 216 

1 21 4.2 Interconnections for Standby 

Fuels .216 

1215.0 Required Gas Supply 216 

1215.1 General 216 

1215.2 Volume 216 

1 21 5.3 Gas Appliances 21 6 

1 21 5.4 Size of Piping Outlets 216 

1216.0 Required Gas Piping Size 216 



2013 CALIFORNIA PLUMBING CODE 



1216.1 Pipe Sizing Methods 216 

1216.2 Tables for Sizing Gas Piping 
Systems 216 

1216.3 Sizing Equations 216 

Table 1216.3 Crand Yfor Natural Gas and 
Undiluted Propane at Standard 
Conditions .217 

1216.4 Sizing of Piping Sections 217 

1216.5 Engineering Methods ......... .217 

1216.6 Variable Gas Pressure 217 

Table 1216.2(1) Schedule 40 Metallic Pipe 219 

Table 1216.2(2) Schedule 40 Metallic Pipe 220 

Table 1216.2(3) Schedule 40 Metallic Pipe 221 

Table 1216.2(4) Schedule 40 Metallic Pipe 222 

Table 1216.2(5) Schedule 40 Metallic Pipe 223 

Table 1216.2(6) Schedule 40 Metallic Pipe 224 

Table 1216.2(7) Semi-Rigid Copper Tubing 225 

Table 1216.2(8) Semi-Rigid Copper Tubing 226 

Table 1216.2(9) Semi-Rigid Copper Tubing 227 

Table 1216.2(10) Semi-Rigid Copper Tubing 228 

Table 1216.2(11) Semi-Rigid Copper Tubing 229 

Table 1216.2(12) Semi-Rigid Copper Tubing 230 

Table 1216.2(13) Semi-Rigid Copper Tubing 231 

Table 1216.2(14) Corrugated Stainless Steel 

Tubing (CSST) 232 

Table 1216.2(15) Corrugated Stainless Steel 

Tubing (CSST) 233 

Table 1216.2(16) Corrugated Stainless Steel 

Tubing (CSST) 234 

Table 1216.2(17) Corrugated Stainless Steel 

Tubing (CSST) 235 

Table 1216.2(18) Corrugated Stainless Steel 

Tubing (CSST) 236 

Table 1216.2(19) Polyethylene Plastic Pipe 237 

Table 1216.2(20) Polyethylene Plastic Pipe 238 

Table 1216.2(21) Polyethylene Plastic Pipe 239 

Table 1216.2(22) Polyethylene Plastic Tubing 240 

Table 1216.2(23) Polyethylene Plastic Tubing 240 

Table 1216.2(24) Schedule 40 Metallic Pipe 241 

Table 1216.2(25) Schedule 40 Metallic Pipe 242 

Table 1216.2(26) Schedule 40 Metallic Pipe 243 

Table 1216.2(27) Schedule 40 Metallic Pipe 244 

Table 1216.2(28) Semi-Rigid Copper Tubing 245 

Table 1216.2(29) Semi-Rigid Copper Tubing 246 

Table 1216.2(30) Semi-Rigid Copper Tubing 247 

Table 1216.2(31) Corrugated Stainless Steel 

Tubing (CSST) 248 

Table 1216.2(32) Corrugated Stainless Steel 

Tubing (CSST) 249 

Table 1216.2(33) Corrugated Stainless Steel 

Tubing (CSST) 250 



xix 



Table 1216.2(34) Polyethylene Plastic Pipe 251 

Table 1216.2(35) Polyethylene Plastic Pipe 252 

Table 1216.2(36) Polyethylene Plastic Tubing 253 

CHAPTER 13 HEALTH CARE FACILITIES 

AND MEDICAL GAS AND 
VACUUM SYSTEMS ......... .255 

Part I Special Requirements for 

Health Care Facilities 257 

1301.0 Application 257 

1301.1 Where Required 257 

1301.2 Health Care Facilities .257 

1301 .3 Breathing Air Replenishment 

(BAR) System 257 

1302.0 Medical Gas and Vacuum 
Piping Systems - Installation 
Requirements 257 

1302.1 General , .257 

1302.2 Manufacturer's Instructions .... .257 

1302.3 Installation 257 

1302.4 Brazing 257 

1302.5 Documentation 257 

1303.0 Protrusions from Walls 257 

1303.1 Drinking Fountain Control 

Valves 257 

1303.2 Exposed Piping 257 

1304.0 Psychiatric Patient Rooms 257 

1304.1 General 257 

1305.0 Locations for Ice Storage 257 

1305.1 General .257 

1306.0 Sterilizers 257 

1306.1 General 257 

1306.2 Indirect Waste Connections .... .257 

1307.0 Vapor Vents and Stacks for 
Sterilizers .257 

1307.1 General 257 

1308.0 Aspirators 258 

1308.1 General 258 

Part II Medical Gas and Vacuum 

Systems 258 

1309.0 Application 258 

1309.1 General 258 

1309.2 Purpose 258 

1309.3 Terms 258 

1309.4 Portable Compressed Gas 
Systems 258 

1309.5 Where Not Applicable 258 

1309.6 Requirements 258 

1309.7 Existing Systems 258 

1310.0 General Requirements 258 



1310.1 Oxygen Compatibility 258 

1310.2 Certification 258 

1310.3 Documentation 258 

1310.4 Supply Source 259 

1310.5 Health Care Organization 
Personnel 259 

1310.6 Brazing Procedures 259 

1311.0 Plan Review 259 

1311.1 Plans and Specifications 259 

1311.2 Requirements 259 

1311.3 Extent of Work 259 

1311.4 Record 259 

1312.0 System Performance 259 

1312.1 Required Operating Pressures . . .259 

1312.2 Minimum Flow Rates 259 

1312.3 Minimum Station Outlets/Inlets . . .259 

Table 1312.1 Standard Designation Colors 
and Operating Pressures for 
Gas and Vacuum Systems 260 

Table 1312.2 Minimum Flow Rates ......... .260 

1313.0 Required Pipe Sizing 260 

1313.1 Maximum Demand 260 

1313.2 Sizing Procedures 260 

Table 1312.3 Minimum Outlets/Inlets per 

Station 261 

1313.3 Engineering Methods 261 

1314.0 Workmanship 261 

1314.1 Accepted Engineering 

Practices .261 

1314.2 Imperfections 261 

1314.3 Burred Ends 261 

1315.0 Materials 261 

1315.1 General 261 

1315.2 Cleaning 261 

1315.3 Delivery 261 

Table 1313.1 System Sizing - Flow 

Requirements for Station 

Inlet/Outlet 262 

Table 1313.2 Size of Gas/Vacuum Piping 262 

1315.4 Tubes 262 

1315.5 Changes in Direction 263 

1315.6 Special Fittings 263 

1315.7 Prohibited Joints 263 

1315.8 Shutoff Valves 263 

1315.9 Soldered Joints . .263 

1316.0 Cleaning for Medical Gas 

Piping Systems 263 

1316.1 Cleaning 263 

1316.2 Contaminated Materials 263 

1317.0 Installation of Piping 263 



xx 



2013 CALIFORNIA PLUMBING CODE 



1317.1 Pipe Protection .263 

1317.2 Location 264 

1317.3 Frost Protection 264 

1317.4 Underground Piping 264 

1317.5 Connectors 264 

1317.6 Positive-Pressure Medical 
Gas Piping Distribution 

Systems 264 

1317.7 Support 264 

1317.8 Seismic Provisions . .264 

1317.9 Testing 264 

1317.10 Labeled 264 

1318.0 Joints 265 

1318.1 General 265 

1318.2 Brazed Joints 265 

1318.3 Tube Ends 265 

1318.4 Cleaning Procedures 265 

Table 1317.7 Maximum Pipe Support 

Spacing 265 

1318.5 Flux .266 

1318.6 Heat and Brazing 266 

1318.7 Purge Gas 266 

1318.8 Prohibited Joints 266 

1319.0 Valves - Requirements, 
Locations, and Labeling 267 

1319.1 General Requirements 267 

1319.2 In-Line Shutoff Valves 267 

1319.3 Future Piping 267 

1319.4 Source Valves 267 

1319.5 Main Valves 267 

1319.6 Riser Valves 267 

1319.7 Zone Valves 268 

1319.8 Service Valves 268 

1320.0 Pressure-Regulating Equipment . .268 

1320.1 Where Required 268 

1320.2 Pressure-Relief Valves 268 

1320.3 Pressure Gauges 268 

1321.0 Station Outlets/Inlets 268 

1321.1 General 268 

1321.2 Post Installation 268 

1322.0 Labeling and Identification 268 

1322.1 General 268 

1322.2 Pipe Labeling 268 

1322.3 Shutoff Valve Identification 269 

1322.4 Station Outlet/Inlet 

Identification 269 

1322.5 Shutoff Valve Labeling 269 

1323.0 Alarms 269 

1323.1 General 269 



2013 CALIFORNIA PLUMBING CODE 



1323.2 Components 269 

1324.0 Medical Air System 269 

1324.1 General 269 

1324.2 Medical Air Compressors 269 

1324.3 Air Source . 270 

1324.4 Air Intakes 270 

1324.5 Drains . .270 

1324.6 Medical Air Receivers 270 

1324.7 Requirements for Medical Air 
Receivers 270 

1325.0 Medical Vacuum Pump System . .270 

1325.1 General 270 

1325.2 Medical-Surgical Vacuum 

Sources 270 

1325.3 Exhausts 271 

1325.4 Receivers 271 

1325.5 Piping 271 

1325.6 Drains 271 

1326.0 Testing and Inspection 271 

1326.1 Where Required 271 

1326.2 Systems 272 

1326.3 Advance Notice 272 

1326.4 Responsibility 272 

1326.5 Testing 272 

1326.6 Retesting 272 

1326.7 Initial Pressure Test - Piped 

Gas Systems .272 

1326.8 Cross-Connection Test - Piped 

Gas Systems 272 

1326.9 Standing Pressure Test - Piped 

Gas Systems 272 

1326.10 Initial Pressure Test - Piped 
Vacuum Systems 273 

1326.11 Standing Pressure Test - Piped 
Vacuum Systems 273 

1326.12 Corrections 273 

1326.13 Approval 273 

1326.14 Covering or Use 273 

1326.15 Uncovering 273 

1327.0 System Certification 273 

1327.1 Certification 273 

1327.2 Certification Tests 273 

1327.3 Reports 274 

1327.4 Report Items 274 

CHAPTER 14 REFERENCED 

STANDARDS . .275 

1401.0 General .277 

1401.1 Standards .277 

Table 1401.1 Referenced Standards 277 



xxi 



CHAPTER 15 FIRESTOP PROTECTION ..... .301 

1501.0 General .303 

1501.1 Applicability 303 

1502.0 Plans and Specifications 303 

1502.1 Penetrations 303 

1503.0 Installation 303 

1503.1 Materials 303 

1504.0 Combustible Piping 

Installations 303 

1504.1 General Requirements .303 

1504.2 Fire-Resistance Rating . 303 

1504.3 Firestop Systems 303 

1504.4 Connections 303 

1504.5 Insulation and Coverings 303 

1504.6 Sleeves 303 

1505.0 Noncombustible Piping 
Installations 303 

1505.1 General Requirements 303 

1505.2 Fire-Resistance Rating 303 

1505.3 Firestop Systems 303 

1505.4 Connections 304 

1505.5 Unshielded Couplings 304 

1505.6 Sleeves 304 

1505.7 Insulation and Coverings 304 

1506.0 Required Inspection 304 

1506.1 General 304 

1506.2 Examination 304 

1506.3 Penetrations 304 

1506.4 Field Installations 304 

CHAPTER 16 ALTERNATE WATER 

SOURCES FOR 
NONPOTABLE 

APPLICATIONS 305 

1601.0 General 307 

1601.1 Applicability 307 

1601.2 System Design 307 

1601.3 Permit 307 

1601.4 Component Identification ..307 

1601.5 Maintenance and Inspection . . . .307 

1601.6 Operation and Maintenance 
Manual 307 

1 601 .7 Minimum Water Quality 
Requirements 307 

Table 1 601 .5 Recommended Minimum Alternate 
Water Source Testing, Inspection, 
and Maintenance Frequency 308 

1601.8 Material Compatibility .308 

1601.9 System Controls 308 

1602.0 Gray Water Systems 308 



1602.1 General 308 

1602.2 System Requirements 309 

1602.3 Connections to Potable and 
Reclaimed (Recycled) Water 
Systems 310 

1602.4 Location 310 

1602.5 Plot Plan Submission 310 

Table 1602.4 Location of Gray Water System . .310 

1602.6 Prohibited Location .311 

1602.7 Drawings and Specifications 311 

1602.8 Procedure for Estimating 

Gray Water Discharge 311 

1 602.9 Gray Water System 
Components 312 

1602.10 Subsurface Irrigation 

System Zones 312 

Table 1602.10 Design of Six Typical Soils 312 

1602.11 Irrigation, Disposal Field, and 

Mulch Basin Construction 313 

Table 1602.11 Subsurface Irrigation Design 

Criteria for Six Typical Soils 313 

Table 1602.11.3 Subsoil Irrigation Field 

Construction 314 

1602.12 Gray Water System Color 

and Marking Information 314 

1602.13 Special Provisions 314 

1602.14 Testing 314 

1602.15 Maintenance 314 

1603.0 Reserved .315 

1604.0 On-Site Treated Nonpotable 

Gray Water Systems 315 

1604.1 General 315 

1604.2 Plumbing Plan Submission 315 

1604.3 System Changes 315 

1604.4 Connections to Potable or 
Reclaimed (Recycled) Water 
Systems .315 

1604.5 Initial Cross-Connection Test ... .315 

1604.6 On-Site Treated Nonpotable 

Gray Water System Materials ... .315 

1 604.7 On-Site Treated Nonpotable 
Gray Water Devices 

and Systems 315 

1 604.8 On-Site Treated Nonpotable 
Gray Water System Color and 
Marking Information 315 

1604.9 Valves 315 

1604.10 Design and Installation 315 

1604.11 Signs 316 

1604.12 Inspection and Testing 316 

1604.13 Sizing 317 



xxii 



2013 CALIFORNIA PLUMBING CODE 



CHAPTER 16A NON-POTABLE WATER 

REUSE SYSTEMS 319 

Part II [DWR] .321 

1 61 3A.0 Recycled Water Systems - 

General 321 

1614A.0 Definitions 321 

1615A.0 Permit 321 

1616A.0 Drawings and Specifications . . . .321 

1617A.0 Pipe Material/Pipe Identification . . .321 

1617A.1 Pipe Materials 321 

1617A.2 Color and Information 321 

1618A.0 Installation 321 

1619A.0 Signs 321 

1620A.0 Inspection and Testing 322 

1621A.0 Sizing 323 

CHAPTER 17 NONPOTABLE RAINWATER 

CATCHMENT SYSTEMS .325 

1701.0 General 327 

1701.1 Applicability 327 

1702.0 Nonpotable Rainwater 
Catchment Systems 327 

1702.1 General 327 

1702.2 Plumbing Plan Submission ..... .327 

1702.3 System Changes 327 

1702.4 Connections to Potable or 
Reclaimed (Recycled) 

Water Systems 327 

1702.5 Initial Cross-Connection Test . . . .327 

1702.6 Sizing 327 

1702.7 Rainwater Catchment System 
Materials 327 

1702.8 Rainwater Catchment System 
Color and Marking 

Information 327 

1702.9 Design and Installation 327 

Table 1702.9.4 Minimum Treatment and Water 

Quality for Rainwater 329 

1702.10 Signs 330 

1702.11 Inspection and Testing 330 

APPENDICES TABLE OF CONTENTS 333 

Appendix A Recommended Rules for 
Sizing the Water Supply 
System 335 

Appendix B Explanatory Notes on 

Combination Waste and Vent 
Systems 347 

Appendix C Alternate Plumbing Systems . . . .351 
Appendix D Sizing Storm Water Drainage 

Systems 361 



Appendix E Manufactured/Mobile Home 
Parks and Recreational 
Vehicle Parks 371 

Appendix F Firefighter Breathing Air 

Replenishment Systems 385 

Appendix G Sizing of Venting Systems 

Serving Appliances Equipped 

with Draft Hoods, Category I 

Appliances, and Appliances 

Listed for Use with Type B 

Vents 391 

Appendix H Private Sewage Disposal 

Systems 403 

Appendix I Installation Standards 415 

Appendix J Combination of Indoor and 
Outdoor Combustion and 
Ventilation Opening Design 523 

Appendix K Potable Rainwater Catchment 

Systems 527 

Appendix L Sustainable Practices ......... .533 

USEFUL TABLES 549 

INDEX . . .557 

HISTORY NOTE 

APPENDIX 585 



2013 CALIFORNIA PLUMBING CODE 



xxiii 



HOW TO DISTINGUISH MODEL CODE LANGUAGE 
FROM CALIFORNIA AMENDMENTS 



To distinguish between model code language and incorporated California Amendments, 
including exclusive California standards, California amendments will appear in italics. 

Symbols in the margins indicate the status of code changes as follows: 

This symbol identifies which State agency(s) by its "acronym" that has amended a section 
of the model code. For a complete listing of State agency acronyms, see the Application 
Section within Chapter 1, Division I. 

This symbol indicates that a change has been made to a California amendment. 

This symbol indicates that a section, paragraph, or table has been revised or relocated 
within IAPMO model code language. 

This symbol indicates deletion of California language. 

This symbol indicates where an entire section, paragraph, or table has been deleted from 
IAPMO model code language. 



2013 CALIFORNIA PLUMBING CODE 




RELATED PUBLICATIONS AND SERVICES 

The Documents Listed are Not by this Reference Adopted by The State of California. 

TAP MO provides a variety of other products which are useful for inspectors, building officials, architects, engineers, 
manufacturers, contractors, plumbers, and apprentices. 

IAPMO Headquarters Directory 

4755 East Philadelphia Street, Ontario, California 9 1 761-28 1 6 
Publication Order Desk Phone: 800-85-1APMO 
Publication Toll Free Fax: 877-85-CODES 
E-mail: publications'<riapmo.org 
Website: www.iaprao.org 
Free Code Question: 800-201-0335 

Uniform Plumbing Code - 2012 Edition: 

The Uniform Plumbing Code is the most widely adopted plumbing code in the world. The 2012 edition contains complete 
"turnkey" requirements for the installation and maintenance of plumbing systems, all in one easy to use book. 

Uniform Plumbing Code Illustrated Training Manual: 

The UPC Illustrated Training Manual is an excellent reference for anyone involved in the plumbing industry. It contains an 
extensive definitions section and several hundred comprehensive technical diagrams and illustrations. It serves as a textbook, 
and it also is useful as a valuable tool for explaining the intent and use of the Code. 

Uniform Plumbing Code Study Guide: 

This book is the perfect complement to the UPC Illustrated Training Manual. Alone, it constitutes a complete self-study course 
for learning the UPC. It has hundreds of questions, general practice exams, and plumbing math, pipe sizing exercises and 
fitting identification. A big help in getting you ready for a certification exam! 

Uniform Plumbing Code Answers & Analysis Manual: 

This increasing popular manual is the result of ongoing work by lAPMO's Answers & Analysis Committee. Updated annu- 
ally, it contains hundreds of questions and answers. Many of these questions arise in the daily administration of the code. 

Guide to Important Code Questions to the Uniform Plumbing Code: 

An excellent reference for learning and understanding plumbing code changes and identifies code changes between editions. 
It is a useful tool for preparing code change proposals. 

Uniform Mechanical Code - 2012 Edition: 

The Uniform Mechanical Code contains complete requirements for the installation and maintenance of heating, ventilating, 
cooking and refrigeration systems. 

Uniform Mechanical Code Illustrated Training Manual: 

Contains technical diagrams and illustrations that demonstrate the intent and use of the UMC. A great reference for everyone 
involved in Mechanical HVACR design and installation. 

Uniform Mechanical Code Study Guide: 

The Study Guide is a complete self-study course for learning the UMC. A big help in getting ready for a certification exam! 
This book is the perfect complement to the UMC Illustrated Training Manual. 



2013 CALIFORNIA PLUMBING CODE 



xxv 



RELATED PUBLICATIONS AND SERVICES 



The Documents Listed are Not by this Reference Adopted by The State o f California. 



Uniform Mechanical Code Answer & Analysis Manual: 

This increasing popular manual is the result of ongoing work by IAPMO's Answers & Analysis Committee. Tt contains 
hundreds of questions and answers that encompass three editions of the UMC. Many of these questions arise in the daily 
administration of the code. 

Guide to Important Code Questions to the Uniform Mechanical Code: 

An excellent reference for learning and understanding mechanical code changes and identifies code changes between editions. 
It is a useful tool for preparing code change proposals. 

Uniform Swimming Pool, Spa, and Hot Tub Code - 2012 Edition: 

The Uniform Swimming Pool, Spa and Hot Tub Code contains complete and current requirements for the erection, installa- 
tion, alteration, repair, relocation, replacement, addition to and use or maintenance of these systems. 

Uniform Solar Energy Code - 2012 Edition: 

The Uniform Solar Energy Code is a unique document that provides a complete set of regulations and guidelines that cover 
both plumbing and mechanical systems in one "turnkey" package. The code is ideal for use by inspectors, jurisdictions and the 
installation industry. 

Drain Waste and Vent Calculator: 

A slide-rule style calculator provides quick and simple access to the fixture unit and sizing tables of Chapter 7 of the UPC. 
Water Sizing Calculator: 

Sizing water systems becomes a much simpler task with the use of this handy slide-rule style calculator. 
Natural Gas Pipe Sizing Calculator: 

This Natural Gas Pipe Sizing Calculator is presented in an easy to use and read slide-rule format. Designed for systems with 
a supply pressure of six to eight i nches of water column, all pipe capacities are given in cubic feet per hour. 

Trailer Standards: 

IAPMO has developed a number of standards for specialty products used in manufactured homes and recreational vehicles. 
These standards are available individually, or they may be purchased as a set. 

Directory of Listed Plumbing Products: 

The IAPMO Listing Program was primarily created to benefit the building and plumbing officials that the products installed 
meet the appropriate standards and code. For a product to continue to be listed, unannounced inspections of the manufacturing 
facilities verify continued compliance. This directory contains information on several thousand IAPMO -listed plumbing prod- 
ucts and is updated annually. 

Education and Training Seminars: 

IAPMO specializes in conducting training and education, including fulfilling continuing education requirements, on the UPC 
and UMC as well as all of the most commonly utilized codes in the Construction Trades. Special seminars on industry or code 
subjects are expeditiously created and delivered upon request. Please call to obtain the seminar schedule or to arrange for a 
custom special seminar. 

Backflow Prevention Institute - IAPMO 

The IAPMO Backflow Prevention Institute provides professional education and training for the control of hazards to our water 
supply and is dedicated to water-system safety worldwide. The Institute provides training in backflow prevention and cross- 
connection control. This program includes backflow preventers, testers, repairers, and cross-connection control surveyors. 
Each of these courses provides compl iance certification to American National Standards Institute standards. 



xxvi 



2013 CALIFORNIA PLUMBING CODE 



RELATED PUBLICATIONS AND SERVICES 

The Documents Listed at e Not by this Reference Adopted by The State of California. 



Backflow Prevention Reference Manual: 

This unique 300-page manual contains full-color illustrations and sections relating to real-world installations, backflow 
prevention, testing cross-connection control, repair and inspections. The manual is an excellent textbook and a reference the 
inspectors in every jurisdiction should have access too. It is also an important resource for system designers, urban planners 
and utility companies - professionals on both sides of the water meter. 

Drinking Water & Backflow Prevention Magazine: 

A monthly subscription to Drinking Water & Backflow Prevention Magazine provides current and valuable information 
regarding this critical public health topic. Subjects range from actual incident reporting, application of the newest technology, 
and general interest articles including fire systems, irrigation systems, and security as well as installation, inspection and repair 
tips. 

Backflow Prevention Tech- Wheel: 

Find quick answers to your backflow questions! The Backflow Tech-Wheel contains a wealth of information in a graphic, 
quick reference format. One side delivers solutions to device application questions; the other a troubleshooting guide offering 
solutions to backflow problems. 

ANSI Z 124 Standards: 

These standards are written to specifically address a variety of plastic plumbing fixtures and components. They are available 
individually, or may be grouped for quantity discounts. 

IAPMO Installation Standards: 

IAPMO standards committees have formulated installation standards for a wide variety of commonly used plumbing materials 
and systems. The I APMO installation standards are included after the text of the Uniform Plumbing Code, or can be purchased 
separately. 

Material and Property Standards: 

IAPMO does not generally develop material and property standards, but when a need exists the Association will take a lead- 
ership role by filling the void. They are available, are subject to amendments and are withdrawn when recognized consensus 
standards are formulated. 

OFFICI AL Magazine: 

lAPMO's bimonthly publication features informative articles related to Plumbing and Mechanical HVACR installations, award 
winning general interest features, technical columns and industry updates. Subscriptions are available and all IAPMO members 
receive a free copy of every issue! 

Membership in IAPMO: 

IAPMO membership is open to all interested persons. Membership categories include Student, Individual, Senior, 
Organizational and Governmental. Member benefits include discounted prices on IAPMO publications, a subscription to 
Official magazine, and numerous educational and training opportunities. 



HOW TO CONTACT IAPMO 
Mailing Address: 4755 East Philadelphia Street, Ontario, California 91761-281 6 
Main Number: 909-472-4100 • Publication Orders: 800-85-IAPMO * Publication Fax: 877-85-CODES 
Website: www.iapmo.org Office Hours: Monday - Friday, 8am - 5pm Pacific Time 



2013 CALIFORNIA PLUMBING CODE 



xxvii 



CALIFORNIA MATRIX ADOPTION TABLES 



Format of the Matrix Adoption Tables 

The matrix adoption tables, examples of which follow, are non-regulatory aids intended to show the user which state agencies 
have adopted and/or amended given sections of model code. An agency's statutory authority for certain occupancies or 
building applications determines which chapter or section may be adopted, repealed, amended or added. See Chapter 1, 
Division I, Sections .1.2,0 through 1.14.0, for agency authority, building application and enforcement responsibilities. 



The side headings identify the scope of the state agencies' adoption as follows: 



Adopt the entire UPC chapter without state amendments. 

If there is an "X" under a particular state agency's acronym in this row, it means that particular state agency has adopted the 
entire model code chapter without any state amendments. 



Example: 

CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 1 - ADMINISTRATION 

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 



Adopting Agency 

Adopt Entire Chapter 

Adopt Entire Chapter as amended 
(amended sections listed below) 



HCD DSA OSHPD 

BSC ! SFM BSCC DPH AGR 

1 2 1-AC AC SS SS/CC 12 3 4 

X : ill! I \ \ 



DWR ! CA SL SLC 



M 



L | E 



Adopt only those sections that are 
listed below 

Chapter/Section 



Adopt the entire UPC chapter as amended, state-amended sections are listed below: 

If there is an t4 X" under a particular state agency's acronym in this row, it means that a particular state agency has adopted the 
entire model code chapter, with state amendments. 



Each state-amended section that the agency has added to that particular chapter is listed. There will be an "X" in the column, 
by that particular section, under the agency's acronym, as well as an "X" by each section that the agency has adopted. 



Example: 

CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 1 - ADMINISTRATION 

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 



Adopting Agency 

| Adopt Entire Chapter 

: Adopt Entire Chapter as amended 
(amended sections listed below) 

Adopt only those sections that are 
listed below 

\ Chapter/Section 

101 

102 



BSC SFM i 



X 
X 



HCD DSA OSHPD 

2 1-AC | AC i SS SS/CC 12 3 

i \ j | | i ; : 

S A M P L E | 



BSCC DPH AGR ! DWR 



CA 



SL SLC 



xxviii 



2013 CALIFORNIA PLUMBING CODE 



Adopt only those sections which are listed below: 

If there is an "X" under a particular state agency's acronym in this row, it means that particular state agency is adoption only 
specific model code or state-amended sections within this chapter. There will be an "X" in the column under the agency's 
acronym, as well as an "X" by each section that the agency has adopted. 

Example: 

CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 1 - ADMINISTRATION 

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 



Adopting Agency 

j Adopt Entire Chapter 

| Adopt Entire Chapter as amended 
! (amended sections listed below) 

Adopt only those sections that are 
: listed below 

Chapter/Section 
1 01 
! 102 



HCD 



DSA 



OSHPD 



! BSC SFM 



1 2 1-ACj AC i SS SS/CC 1 



M P L E 



X 
X 



Legend of Acronyms of Adopting State Agencies 



BSCC DPH AGR DWR CA SL SIC 



3 4 



BSC 
SFM 
HCD 1 
HCD 2 
HCD 1/AC 
DSA-AC 
DSA-SS 
DSA-SS/CC 
OSHPD 1 
OSHPD 2 
OSHPD 3 
OSHPD 4 
BSCC 
DPH 
AGR 
CEC 
CA 



SL 

SLC 

DWR 



California Building Standards Commission (see Section 1.2.0) 
Office of the State Fire Marshal (see Section 1.11.0) 

Department of Housing and Community Development (see Section 1.8.2.1.1) 

Department of Housing and Community Development (see Section 1.8.2.1.3) 

Department of Housing and Community Development (see Section 1.8.2.1.2) 

Division of the State Architect-Access Compliance (see Section 1.9.1) 

Division of the State Architect-Structural Safety (see Section 1.9.2) 

Division of the State Architect-Structural Safety/Community Colleges (see Section 1.9.2.2) 

Office of Statewide Health Planning and Development (see Section 1 .10.1) 

Office of Statewide Health Planning and Development (see Section 1 .10.2) 

Office of Statewide Health Planning and Development (see Section 1 .10.3) 

Office of Statewide Health Planning and Development (see Section 1.10.4) 

Board of State and Community Corrections (see Section 1.3.0) 

Department of Public Health (see Section 1.7.0) 

Department of Food and Agriculture (see Section 1 .6.0) 

California Energy Commission (see Section 100 in Part 2, the California Energy Code) 
Department of Consumer Affairs (see Section 1.4.0): 

Board of Barbering and Cosmetology 

Board of Examiners in Veterinary Medicine 

Board of Pharmacy 

Acupuncture Board 

Bureau of Home Furnishings 

Structural Pest Control Board 
State Library (see Section 1 .12.0) 
State Lands Commission (see Section 1.14.0) 

Department of Water Resources (see Section 1.13.0 of Chapter 1 of the California Plumbing Code in Part 
2 of Title 24) 



The state agencies are available to answer questions about their adoptions. Contact information is provided on page v of this code. 



2013 CALIFORNIA PLUMBING CODE 



xxix 



2013 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 1 - ADMINISTRATION 

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 



Adopting Agency 


BSC 


SFM 


HCD 


DSA 


OSHPD 


BSCC 


DPH 


AGR 


DWR 


CA 


SL 


SLC 


\ 


2 


1-AC 


AC 


ss 


ss/cc 


1 


2 


3 


4 


Arinnt Fntirp Chanfpr 








































Adopt Entire Chapter as amended 
(amended sections listed below) 








































Adopt only those sections that are 
listed below 

Chapter/Section 


X 


X 


X 


X 


X 


X 


X 


X 


x 


X 


X 


X 


X 


X 


X 


X 


X 






Division I - California 

fitlfftlfllblf ClllUfl 








































1.1.1 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 
















1.1.2 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 
















1.1.3 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 
















1.1.4 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 
















1.1.5 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 
















1.1.6 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 
















1.1.7 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 
















1.1.8 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 
















1.1.9 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 
















1.1.10 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 
















1.1.11 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 
















1.1.12 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 
















1.2.0 


X 






































1.3.0 


























X 














1.4.0 


































X 






1.6.0 






























X 










1.7.0 




























X 












1.8.0 






X 


X 


X 






























1.9.0 












X 




























1.9.1 












X 




























1.9.2 














x 


























1.9.2.1 








































1.9.2.2 
















x 
























1.10.1 


















x 






















1.10.2 




















X 




















1.10.3 






















X 


















1.10.4 
























X 
















1.11.0 




X 




































1.13.0 
































X 








Division II - Administration 








































101.0-103.1.1 


















X 


X 


X 


X 
















103.1.2 and subsections 






X 


X 










X 


X 


X 


X 
















103.1.1 - 103.8 


















X 


X 


X 


X 

















2013 CALIFORNIA PLUMBING CODE 



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CHAPTER 1 

ADMINISTRATION 
DIVISION I 
CALIFORNIA ADMINISTRATION 



1.1.0 General. 

1.1.1 Title. These regulations shall he known as the Califor- 
nia Plumbing Code, may be cited as such and will be referred 
to herein as "this code. " The California Plumbing Code is 
Part 5 of twelve parts of the official compilation and publi- 
cation of the adoption, amendment, and repeal of plumbing 
regulations to the California Code of Regulations, Title 24, 
also referred to as the California Building Standards Code. 

|| This part incorporates by adoption the 2012 Uniform Plumb- 
ing Code of the International Association of Plumbing and 
Mechanical Officials with necessary California amendments. 

1.1.2 Purpose. The purpose of this code is to establish the 
minimum requirements to safeguard the public health, safety 
and general welfare through structural strength, means of 
egress facilities, stability, access to persons with disabilities, 
sanitation, adequate lighting and ventilation, and energy con- 
servation; safety to life and property from fire and other haz- 
ards attributed to the built environment; and to provide safety 
to fire fighters and emergency responders during emergency 
operations. 

1.1.3 Scope. The provisions of this code shall apply to the 
construction, alteration, movement, enlargement, replace- 
ment, repair; equipment, use and occupancy, location, main- 
tenance, removal, and demolition of every building or 
structure or any appurtenances connected or attached to such- 
buildings or structures throughout the State of California. 

1.13.1 Non-State-Regulated Buildings, Structures, and 
Applications. Except as modified by local ordinance pur- 
suant to Section 1.1.8, the following standards in the Cal- 
ifornia Code of Regulations, Title 24, Parts 2, 2.5, 3, 4, 
5, 6, 9, 10 and 11 shall apply to all occupancies and 
applications not regulated by a state agency. 

1.1.3.2 State-Regulated Buildings, Structures, and 
Applications. The model code, state amendments to the 
model code, and/or state amendments where there are no 
relevant model code provisions shall apply to the fol- 
lowing buildings, structures, and applications regulated 
by state agencies as specified in Section 1.2.0 through 
1.14.0, except where modified by local ordinance pur- 
suant to Section 1.1.8. When adopted by a state agency, 
the provisions of this code shall be enforced by the appro- 
priate enforcing agency, but only to the extent of author- 
ity granted to such agency by the state Legislature. 

Note: See Preface to distinguish the model code provi- 
sions from the California provisions. 

1. State-owned buildings, including buildings con- 
structed by the Trustees of the California State Uni- 
versity, and to the extent permitted by California 
laws, buildings designed and constructed by the 



Regents of the University of California, and regu- 
lated by the Building Standards Commission. See 
Section 1.2.0 for additional scope provisions. 

2. Local detention facilities regulated by the Correc- 
tions Standards Authority See Section 1.3.0 for 
additional scope provisions. 

3. Barbering, cosmetology or electrolysis establish- 
ments, acupuncture offices, pharmacies, veterinaiy 
facilities, and structural pest control locations reg- 
ulated by the Department of Consumer Affairs. See 
Section 1.4.0 for additional scope provisions. 

4. Reserved for the California Energy Commission. See 
Section 1.5.0 for additional scope provisions. 

5. Dairies and places of meat inspection regulated by 
the Department of Food and Agriculture. See Sec- 
tion 1.6.0 for additional scope provisions. 

6. Organized camps, laboratory animal quarters, pub- 
lic swimming pools, radiation protection, commis- 
saries serving mobile food preparation vehicles, and 
wild animal quarantine facilities regulated by the 
Department of Public Health. See Section 1.7.0 for 
additional scope provisions. 

7. Hotel, motels, lodging houses, apartment houses, 
dwellings, dormitories, condominiums, shelters for 
homeless persons, congregate residences, employee 
housing, factory-built housing, and other types of 
dwellings containing sleeping accommodations with 
or without common toilets or cooking facilities. See 
Section 1.8.2. 1. 1 for additional scope provisions. 

8. Accommodations for persons with disabilities in 
buildings containing newly constructed covered 
multifamily dwellings, new common use spaces serv- 
ing existing covered multifamily dwellings, additions 
to existing buildings where the addition alone meets 
the definition of "COVERED MULTIFAMILY 
D WELLINGS, " and common use spaces serving 
covered multifamily dwellings which are regulated 
by the Department of Housing and Community 
Development. See Section 1.8.2.1.2 for additional 
scope provisions. 

9. Permanent buildings and permanent accessory 
buildings or structures constructed within mobile- 
home parks and special occupancy parks regulated 
by the Department of Housing and Community 
Development. See Section 1.8.2.1.3 for additional 
scope provisions. 

10. A ccomm odations for persons with disabilities regu- 
lated by the Division of the State Architect. See Sec- 
tion 1.9.1 for additional scope provisions. 



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DIVISION I ADMINISTRATION 



11. Public elementary and secondary schools, commu- 
nity college buildings, and state-owned or state- 
leased essential service buildings regulated by the 
Division of the State Architect See Section 1,9.2 for 
additional scope provisions. 

12. Reserved for the State Historical Building Safety 
Board with the Division of the State Architect. 

13. General acute care hospitals, acute psychiatric hos- 
pitals, skilled nursing and/or intermediate care facil- 
ities, clinics licensed by the Department of Public 
Health, and correctional treatment centers regulated 
by the Office of Statewide Health Planning and 
Development. See Section 1.10.0 for additional 
scope provisions. 

14. Applications regulated by the Office of State Fire 
Marshal include but are not limited to following in 
accordance with Section 1.11.0: 

1 . Buildings or structures used or intended for use 
as an: 

1.1 Asylum, jail, prison. 

1.2 Mental hospital, hospital, home for the eld- 
erly, children s nursery, children s home or 
institution, school or any similar occupancy of 
any capacity. 

1.3. Theater, dancehall, skating rink, audito- 
rium, assembly hall, meeting hall, nightclub, 
fair building, or similar place of assemblage 
where 50 or more persons may gather together 
in a building, room or structure for the purpose 
of amusement, entertainment, instruction, delib- 
eration, worship, drinking or dining, awaiting 
transportation, or education. 

1.4. Small family day care homes, large family 
day-care homes, residential facilities and resi- 
dential facilities for the elderly residential care 
facilities. 

1.5. State institutions or other state-owned or 
state-occupied buildings. 

1.6. High rise structures. 

1. 7. Motion picture production studios. 

1.8. Organized camps. 

1.9. Residential structures. 

2. Tents, awnings or other fabric enclosures used 
in connection with any occupancy. 

3. Fire alarm devices, equipment and systems in 
connection with any occupancy. 

4. Hazardous materials, flammable and com- 
bustible liquids. 

5. Public school automatic fire detection, alarm 
and sprinkler systems. 

6. Wildland-urban interface fire areas. 

15. Public libraries constructed and renovated using 
funds from the California Library Construction and 
Renovation Bond Act of 1988 and regulated by the 



State Librarian. See Section 1.12.0 for additional 
scope provisions. 

16. Graywater systems regulated by the Department of 
Water Resources. See Section 1.13.0 for additional 
scope provisions. 

1 7. For applications listed in Section 1.9.1 regulated by 
the Division of the State Architect -Access Compli- 
ance, outdoor environments and uses shall be clas- 
sified according to accessibility uses described in 
Chapter 11 A, 11B, andllC. 

18. Marine Oil Terminals regulated by the California 
State Lands Commission. See Section 1.14.0 for 
additional scope provisions. 

L 1. 4 Appendices, Provisions contained in the appendices of 
this code shall not apply unless specifically adopted by a state 
agency or adopted by a local enforcing agency in compliance 
with Health and Safety Code Section 18901 et seq. for Build- 
ing Standards Law, Health and Safety Code Section 1 7950 
for State Housing Law and Health and Safety Code Section 
13869. 7 for Fire Protection Districts. See Section 1.1.8 of this 
code. 

1.1.5 Referenced Codes, The codes, standards and publica- 
tions adopted and set forth in this code, including other codes, 
standards and publications referred to therein are, by title and 
date of publication, hereby adopted as standard reference 
documents of this code. When this code does not specifically 
cover any subject related to building design and construction, 
recognized architectural or engineering practices shall be 
employed. The National Fire Codes, standards, and the Fire 
Protection Handbook of the National Fire Protection Asso- 
ciation are permitted to be used as authoritative guides in 
determining recognized fire prevention engineering practices. 

1.1. 6 Non-Building Standards, Orders, and Regulations. 

Requirements contained in the Uniform Plumbing Code, or 
in any other referenced standard, code or document, which 
are not building standards as defined in Health and Safety 
Code Section 18909 shall not be construed as part of the pro- 
visions of this code. For nonbuilding standards, orders, and 
regulations, see other titles of the California Code of Regu- 
lations. 

L 1. 7 Order of Precedence and Use. 

1.1.7.1 Differences. In the event of any differences 
between these building standards and the standard refer- 
ence documents, the text of these building standards shall 
govern. 

1.1. 7.2 Specific Provisions. Where a specific provision 
varies from a general provision, the specific provision 
shall apply. 

1.1.7.3 Conflicts. When the requirements of this code 
conflict with the requiremen ts of any other part of the 
California Building Standards Code, Title 24, the most 
restrictive requirements shall prevail. 

1.1.8 City, County, or City and County Amendments, Addi- 
tions or Deletions. The provisions of this code do not limit 
the authority of city, county, or city and county governments 
to establish more restrictive and reasonably necessary dif- 



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2013 CALIFORNIA PLUMBING CODE 



DIVISION I ADMINISTRATION 



ferences to the provisions contained in this code pursuant to 
complying with Section 1. 1.8. 1 . The effective date of amend- 
ments, additions, or deletions to this code by city, county, or 
city and county filed pursuant to Section 1.1.8.1 shall be the 
date filed. However, in no case shall the amendments, addi- 
tions or deletions to this code be effective any sooner than the 
effective date of this code. 

Local modifications shall comply with Health and Safety 
Code Section 18941 .5 for Building Standards Law, Health 
and Safety Code Section 17958 for State Housing Law or 
Health and Safety Code Section 13869.7 for Fire Protection 
Districts. 

L 1.8.1 Findings and Filings. 

1. The city, county, or city and county shall make 
express findings for each amendment, addition or 
deletion based upon climatic, topographical, or geo- 
logical conditions. 

Exception: Hazardous building ordinances and pro- 
grams mitigating unrein/breed masonry buildings. 

2. The city, county, or city and county shall file the 
amendments, additions or deletions expressly marked 
and identified as to the applicable findings. Cities, 
counties, cities and counties, and fire departments 
shall file the amendments, additions or deletions, and 
the findings with the California Building Standards 
Commission at 2525 Natomas Park Drive, Suite 130, 
Sacramento, CA 95833. 

3. Findings prepared by fire protection districts shall be 
ratified by the local city, county, or city and county and 
filed with the California Department of Housing and 
Community Development, Division of Codes and 
Standards, P.O. Box 1407, Sacramento, CA 95812- 
1407 or 1800 3rd Street, Room 260, Sacramento, CA 
95811. 

1.1.9 Effective Date of this Code. Only those standards 
approved by the California Building Standards Commission 
that are effective at the time an application for building per- 
mit is submitted shall apply to the plans and specifications 
for and to the construction perf ormed under, that permit. For 
the effective dates of the provisions contained in this code, 
see the History Note page of this code. 

L 1 . 1 Availability of Codes. At least one complete copy each 
of Titles 8, 19, 20, 24, and 25 with all re visions shall be main- 
tained in the office of the building official responsible for the 
administration and enforcement of this code. Each state 
department concerned and each city, county, or city and 
county shall have an up-to-date copy of the code available 
for public inspection. See Health and Safety Code Section 
18942 (d)(1) and (2). 

1.1.11 Format. This part fundamentally adopts the Uniform 
Plumbing Code by reference on a chapter-by-chapter basis. 
When a specific chapter of the Uniform Plumbing Code is not 
printed in the code and is marked "Reserved ", such chapter 
of the Uniform Plumbing Code is not adopted as a portion of 
this code. When a specific chapter of the Uniform Plumbing 



Code is marked "Not Adopted by the State of California " but 
appears in the code, it may be a vailable for adoption by load 
ordinance. 

Note: Matrix Adoption Tables at the front of each chapter 
may aid the code user in determining which chapter or sec- 
tions within a chapter are applicable to buildings under the 
authority of a specific state agency but they are not to be con- 
s idered regu I a to ry. 

1.1.12 Validity. If any chapter section, subsection, sentence, 
clause or phrase of this code is for any reason held to be 
unconstitutional, contrary to statute, exceeding the authority 
of the state as stipulated by statutes or otherwise inoperative, 
such decision shall not affect the validity of the remaining 
portion o f th is code. 

1.2.0 Building Standards Commission. 

1.2.1 Specific scope of application of the agency responsible 
for enforcement, the enforcement agency, and the specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

1. State Buildings for All Occupancies. 

Application - State buildings (all occupancies), includ- 
ing buildings constructed by the Trustees of the Califor- 
nia State University and the Regents of the University of 
California where no state agency has the authority to 
adopt building standards applicable to such buildings. 

Enforcing Agency - State or focal agency specified by 
the applicable provisions of law. 

Authority Cited - Health and Safety Code Section 
18934.5. 

Reference - Health and Safety Code, Division 13, Part 
2.5, commencing with Section 18901 . 

2. University of California, California State Universities, 
and California Community Colleges. 

Application - Standards for lighting for parking lots and 
primary campus walkways at the University of Califor- 
nia, California State Universities, and California Com- 
munity Colleges. 

Enforcing Agency - State or local agency specified by 
the applicable provisions of law. 

Authority Cited - Government Code Section 14617. 

Reference - Government Code Section 1461 7. 

3. Existing State-Owned Buildings y including those 
owned, by the University of California and by the Cali- 
fornia State University - Building seismic retrofit stan- 
dards including abating falling hazards of structural and 
nonstructural components and strengthening of building 
structures. See also Division of l he State Architect. 

Enforcing Agency - State or local agency specified by 
the applicable provisions of law. 

Authority Cited - Government Code Section 16600. 

References - Government Code Sections 16600 through 
16604. 



2013 CALIFORNIA PLUMBING CODE 



5 



DIVISION I ADMINISTRATION 



4. Un reinforced Masonry Bearing Wall Buildings. 

Application - Minimum seismic strengthening standards 
for buildings specified in Appendix Chapter I of the Cali- 
fornia Code for Building Conservation, except for build- 
ings subject to building standards adopted pursuant to Part 
1.5 (commencing with Section 1 7910). 

Enforcing Agency - State or local agency specified by 
the applicable provisions of law. 

Authority Cited - Health and Safety Code Section 
18934.6. 

References - Health and Safety Code Sections 18901 
through 18949. 

1.2.2 Alternative Materials, Design, and Methods of Con- 
struction and Equipment. The provisions of this code are not 
intended to prevent the installation of any material or to pro- 
hibit any design or method of construction not specifically 
prescribed by this code, provided that any such alternative 
has been approved. An alternative material, design or method 
of construction shall be approved where the building official 
finds that the proposed design is satisfactory and complies 
with the intent of the provisions of this code, and that the 
material, method or work offered is, for the purpose in tended, 
at least the equivalent of that prescribed in this code in qual- 
ity strength, effectiveness, fire resistance, durability, and 
safety. 

1.2.2. 1 Research Reports. Supporting data, where nec- 
essary to assist in the approval of materials or assem- 
blies not specifically provided for in this code, shall 
consist of valid research reports from approved sources. 

1.2.2.2 Tests. Whenever there is insufficient evidence of 
compliance with the provisions of this code, or evidence 
that a material or method does not conform to the 
requiremen ts of this code, or in order to substantiate 
claims for alternative materials or methods, the building 
official shall have the authority to require tests as evi- 
dence of compliance to be made at no expense to the 
jurisdiction. Test methods shall be as specified in this 
code or by other recognized test standards. In the 
absence of recognized and accepted test methods, the 
building official shall approve the testing procedures. 
Tests shall be performed by an approved agency. Reports 
of such tests shall be retained by the building official for 
the period required for retention of public records. 

1.2.3 Adopting Agency Identification. The provisions of this 
code applicable to buildings identified in this section will be 
identified in the Matrix Adoption Tables under the acronym 
BSC' 

1.3.0 Board of State and Community Corrections. 

1.3.1 Specific scope of application of the agency responsible 
for enforcement, the enforcement agency, and the specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

Application - Local detention facilities. 

Enforcing Agency - Board of State and Community Cor- 
rections. 



Authority Cited -Penal Code Section 6030; Welfare and 
Institutions Code Sections 210 and 885. 

References - Penal Code Section 6030; Welfare and 
Institutions Code Sections 210 and 885. 

1.3.2 Adopting Agency Identification. The provisions of this 
code applicable to buildings identified in this section will be 
identified in the Matrix Adoption Tables under the acronvm 
BSCC 

1.4.0 Department of Consumer A ff airs. 

1.4.1 Specific scope of application of the agency responsible 
for enforcement, the enforcement agency, and the specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

Board of Bartering and Cosmetology. 

Application - Any establishment or mobile unit where 
barbering, cosmetology, or electrolysis is being per- 
formed. 

Enforcing Agency - State or local agency specified by 
applicable provisions of law. 

Authority Cited -■ Business and Professions Code Sec- 
tion 7312. 

References - Business and Professions Code Sections 
7303, 7303.1, 7312, and 7313. ' 

1. 4. 2 Adopting Agency Identification. The provisions of this 
code applicable to buildings identified in this section will be 
identified in the Matrix Adoption Tables under the acronym 
CA. 

1.5.0 Reserved for California Energy Commission. 

1.6.0 Department of Food and Agriculture. 

1.6.1 Specific scope of application of the agency responsible 
for enforcement, the enforcement agency, and the specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

Application - Dairies and places of meat and poultry 

inspection. 

Enforcing Agency - Department of Food and Agriculture. 

Authority Cited - Food and Agricultural Code Sections 

18735, 18960, 19384, 33481, and 33731. 

References - Food and Agricultural Code Sections 
18735, 18960, 19384, 33481, and 33731. 

1.6.2 Adopting Agency Identification. The provisions of this 
code applicable to buildings identified in this section will be 
identified in the Matrix Adoption Tables under the acronym 
AGR. 

1. 7.0 Department of Public Health. 

L 7.1 Specific scope of application of the agency responsible 
for enforcement, the enforcement agency, and the specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 



6 



2013 CALIFORNIA PLUMBING CODE 



DIVISION I ADMINISTRATION 



Department of Public Health. 

Application — Commissaries serving mobile food prepa- 
ration units, food establishments, and organized camps. 
Enforcing Agency - Department of Health Services and 
local health agency. 

Authority Cited - Health and Safety Code Sections 
18897.2' 110065, 113710, and 131200. 

References - Health and Safety Code Sections 18897.2, 
18897.4, 18897.7, 110065, 113705, 113710, and 131200. 

L 7.2 Adopting Agency Identification. 

The provisions of this code applicable to buildings identified 
in this section will be identified in the Matrix Adoption Tables 
under the acronym DPH. 

1.8.0 Department of Housing and Community Development 
fHCDJ 

1.8.1 Purpose. The purpose of this code is to establish minimum 
requirements to protect the health, safety, and general welfare 
of the occupants and the public by governing the erection, con- 
struction, reconstruction, enlargement, conversion, alteration, 
repair, moving, removal, demolition, sanitation, ventilation, and 
maintenance or use of plumbing equipment or systems. 

1.8.2 A uthority and Abbreviations. 

1.8.2.1 General. The Department of Housing and Com- 
munity Development is authorized by la w to promulgate 
and adopt building standards and regulations for several 
types of building applications. The applications under 
the authority of the Department of Housing and Com- 
munity Development are listed in Sections 1.8.2.1.1 
through 1.8.2.1.3. 

1.8.2.1.1 Housing Construction. 

Application - Hotels, motels, lodging houses, apart- 
ment houses, dwellings, dormitories, condominiums, 
shelters for homeless persons, congregate residences, 
employee housing, factory built housing, and other 
types of dwellings containing sleeping accommoda- 
tions with or without common toilet or cooking facil- 
ities including accessory buildings, facilities, and uses 
thereto. Sections o f th is code which pertain to appli- 
cations listed in this section are identified using the 
abbreviation 'HCD 1 ". 

Enforcing Agency - Local building departmen t or th e 
Department of Housing and Community Development. 

Authority Cited - Health and Safety Code Sections 
17040, 17050, 17920.9, 17921 , 17921 .3, 17921.6, 
17921.10, 17922, 17922.6, 17922.12, 17927, 17928, 
17959.6, 18300, 18552, 18554, 18620, 18630, 
18640, 18670, 18690, 18691, 18865, 18871.3, 
18871.4, 18873, 18873.1, 18873.2, 18873.3, 
18873.4, 18873.5, 18938.3, 18944.11, and 19990; 
and Government Code Section 12955.1. 

References - Health and Safety Code Sections 
17000 through 17062.5, 17910 through 17995.5, 
18200 through 18700, 18860 through 18874, and 
19960 through 19997; and Government Code Sec- 
tions 12955.1 and 12955.1.1. 



L 8. 2. 1. 2 Housing A ccessibility. 
Application - "COVERED MU ill FAMILY 
DWELLINGS" as defined in Chapter 11 A of the Cal- 
ifornia Code of Regulations, Title 24, Part 2, also 
known as the California Building Code (CBC) includ- 
ing hut not limited to lodging houses, dormitories, 
times ha res, condominiums, shelters for homeless per- 
sons, congregate residences, apartment houses, 
dwellings, employee housing, factory-built housing, 
and other types of dwellings containing sleeping 
accommodations with or without common toilet or 
cooking foci I dies. 

Sections of this code identified by the abbrevi- jj 
at ion " HCD 1-AC" require specific accommoda- 
tions for "PERSONS WITH DISABILITIES" as 
defined in Chapter HA of the CBC. The application 
of such provisions shall be in conjunction with other 
requirements of this code and apply only to newly 
constructed "CO IE RED MULTIEA M1LY 
DWELLINGS" as defined in Chapter 11 A of the 
CBC "HCD 1-AC" applications include, but are 
not limited to, the following: 

1. All newly-constructed "COVERED MULTI- 
FAMILY DWELLINGS" as defined in Chapter 
11 A of the CBC 

2. New "COMMON USE AREAS " as defined in 
Chapter H A of the CBC serving existing cov- 
ered multi/amily dwellings. 

3. Additions to existing buildings, where the addi- 
tion alone meets the definition of "COVERED 
MULTIEA MILY DWELLINGS" as defined in 
Chapter 11 A of the CBC 

4. Common use areas serving covered, muliifam- 
ily dwellings. 

5. Where any portion of a buildings exterior is 
preserved, but the interior of the building is 
removed, including all structural portions of 
floors and ceilings, the building is considered a 
new building for determining the application of 
CBC, Chapter It A. 

HCD 1-AC building standards generally do not 
apply to public use areas or public accommodations 
such as hotels and motels. Public use areas, public 
accommodations and housing which is publicly 
funded as defined in Chapter 2 of the CBC are sub- 
ject to the Division of the State Architect (DSA-AC) 
and are referenced in Section 1.9.1 . 

Enforcing Agency - Local building department or the 
Department of Housing and Community Development. 
Authority Cited - Health and Safety Code Sections 
17040, 17050, 17920.9, 17921 ,' 1 7921.3, 17921.6, 
17921.10, 17922, 17922.6, 17922.12, 17927, 17928, 
17959.6, 18300, 18552, 18554, 18620, 18630, 18640, 
18670, 18690, 18691, 18865, 18871.3, 18871.4, 
18873, 18873.1, 18873.2, 18873.3, 18873.4, 18873.5, 
18938.3, 18944.11, and 19990; and Government 
Code Section 12955.1. 



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DIVISION I ADMINISTRATION 



References - Health and Safety Code Sections 
17000 through 1 7062.5, 17910 'through 17995.5, 
18200 through 18700, 18860 through 18874, and 
19960 through 19997; and Government Code Sec- 
tions 12955 J and 12955.1.1. 

1.8.2.1.3 Permanent Buildings in Mobilehome 
Parks and Special Occupancy Parks. 
Application - Permanent buildings, and permanent 
accessory buildings or structures, constructed 
within mobilehome parks and special occupancy 
parks that are under the control and ownership of 
the park operator Sections of this code wh ich per- 
tain to applications listed in this section are iden ti- 
ll /led using the abbreviation "If CD 2 ". 

Enforcing Agency - Local building department or 
other local agency responsible for the enforcement 
of Health and Safety Code Division 13, Part 2.1, 
commencing with Section 18200 for mobilehome 
parks and Health and Safety Code, Division 13, Part 
2.3, commencing with Section 1 8860 for special 
occupancy parks; or the Department of Housing and 
Com m un ity De velopm eni. 

Authority Cited - Health and Safety Code Sections 
17040, 17050, 17920.9, 17921 , 17921 .3, 17921.6, 
17921.10, 17922, 17922.6, 17922.12, 17927, 17928, 
17959.6, 18300, 18552, 18554, 18620, 18630, 
18640, 18670, 18690, 18691, 18865, 1887L3, 
18871.4. 18873, 18873.1, 18873.2, 18873.3, 
18873.4, 18873.5, 18938.3, 18944.11, and 19990; 
and Government Code Section 12955.1. 
References - Health and Safety Code Sections 
17000 through 17062.5, 17910 through 17995.5, 
18200 through 18700, 18860 through 188 74, and 
19960 through 19997; and Government Code Sec- 
tions 12955.1 and 12955.1.1. 
1.8.3 Local Enforcing Agency. 

1.8.3.1 Duties and Powers. The building department of 
every city, county, or city and county shall enforce all the 
provisions of law, this code, and the other rules and reg- 
ulations promulgated by the Department of Housing and 
Community Development 'pertaining to the installation, 
erection, construction, reconstruction, movement, 
enlargement, conversion, alteration, repair, removal, 
demolition, or arrangement of apartment houses, hotels, 
motels, lodging houses and dwellings, including acces- 
sory buildings, facilities, and uses thereto. 

The provisions regulating the erection and con- 
struction of dwellings and appurtenant structures shall 
not apply to existing structures as to which construction 
is commenced or approved prior to the effective date of 
these regulations. Requirements relating to use, mainte- 
nance and occupancy shall apply to all dwellings and 
appurtenant structures approved for construction or con- 
structed before or af ter the effective date of this code. 

For additional information regarding the use and 
occupancy of existing buildings and appurtenant struc- 
tures, see California Code of Regulations, Title 25. 
Division /, Chapter 1, Subchapter 1, commencing with 
Section 1 . 



1.8.3.2 Laws, Rules, and Regulations. Other than the 
building standards contained in this code, and notwith- 
standing other provisions of law, the statutory author- 
ity and location of the laws, rules, and regulations to 
be enforced by local enforcing agencies are listed by 
statute in Sections 1.8.3.2.1 through 1 .8.3.2.5 below; 

1.8.3.2.1 State Housing Law. Refer to the State 
Housing Law, California Health and Safety Code, 
Division 13, Part 1.5, commencing with Section 
1 791 and California Code of Regulations, Title 25, 
Division 1, Chapter 1, Subchapter 1, commencing 
with Section 1, for the erection, construction, recon- 
struction, movement, enlargement, con version, 
alteration, repair, removal, demolition, or arrange- 
ment of apartment houses, hotels, motels, lodging 
houses and dwellings, including accessory build- 
ings, facilities, and uses thereto. 

1.8.3.2.2 Mobilehome Parks Act. Refer to the Mobile- 
home Parks Act, California Health and Safety Code, 
Division 13, Part 2.1, commencing with Section 18200 
and California Code of Regulations, Title 25, Di vision 
1, Chapter 2, commencing with Section 1000 for 
mobilehome park administrative and enforcement 
authority, permits, plans, fees, violations, inspections, 
and penalties both within and outside mobilehome 
parks. 

Exception: Mobilehome parks where the Depart- 
ment of Housing and Community Development is the 
enforcing a gen cy. 

1.8.3.2.3 Special Occupancy Parks Act Refer to the 
Special Occupancy Parks A ct, California Health and 
Safety Code, Division 13, Part 2.3, commencing with 
Section 18860 and California Code o f Regulations, 
Title 25, Division 1, Chapter 2.2, commencing with 
Section 2000 for special occupancy park adminis- 
trative and enforcement authority, permits, fees, vio- 
lations, inspections, and penalties both within and 
outside of special occupancy parks. 

Exception: Special occupancy parks where the 
Department of Housing and Community Develop- 
ment is the enforcing agency. 

L8.3.2.4 Employee Housing Act. Refer to the 
Employee Housing Act, California Health and 
Safety Code, Division 13, Part 1 , commencing with 
Section 17000 and California Code of Regulations, 
Title 25, Division 1 . Chapter 1, Subchapter 3, com- 
mencing with Section 600 for employee housing 
administrative and enforcement authority, permits, 
fees, violations, inspections, and penalties. 

1.8.3.2.5 Factory-Built Housing Law. Refer to the 
Factory-Built Housing Law, California Health and 
Safety Code, Division 13, Part 6 commencing with 
Section 19960 and California Code of Regulations, 
Title 25, Division J, Chapter 3, Subchapter 1, com- 
mencing with Section 3000 for factory-built housing 
administrative and enforcement authority, permits, 
fees, violations, inspections, and penalties. 



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1.8.4 Permits, Fees, Applications, and Inspections. 

1. 8.4. 1 Permits. A written construction permit shall be 
obtained from the enforcing agency prior to the erection, 
construction, reconstruction, installation, relocation, or 
alteration of any plumbing system. 

Exceptions: 

1. Work exempt from permits as specified in Chapter 
1, Administration, Division II, Section 103.1.1 (1)- 
(2) of this code. 

2. Changes, alterations, or repairs of a minor nature not 
affecting structural features, egress, sanitation, safety, 
or accessibility as determined by the enfoiving agency. 

Exemptions from permit requirements shall not 
be deemed to grant authorization for any work to be 
done in any manner in violation of other provisions 
of law or this code. 

1.8.4.2 Fees. Subject to other provisions of law, the gov- 
erning body of any city, county, or city and county may 
prescribe fees to defray the cost of enforcement of rules 
and regulations promulgated by the Department of Hous- 
ing and Community Development. The amount of the fees 
shall not exceed the amount reasonably necessary to 
administer or process permits, certificates, forms, or 
other documents, or to defray the costs of enforcement. 
For additional information, see State Housing Law, 
Health and Safety Code, Division 13, Part 1.5, Section 
17951 and California Code of Regulations, Title 25, 
Division 1, Chapter 1, Subchapter 1, Article 3, com- 
mencing with Section 6. 

1.8.4.3 Plan Review and Time Limitations. Subject to 
other provisions of law, provisions related to plan check- 
ing, prohibition of excessive delays, and contracting with 
or employment of private parties to perform plan check- 
ing are set forth in the State Housing Law, Health and 
Safety Code Section 1 7960. 1, and for employee housing, 
in Health and Safety Code Section 17021. 

1.8.4.3.1 Retention of Plans. The building depart- 
ment o f every city, county, or city and county shall 
maintain an official copy, microfilm, or electronic 
or other type of photographic copy of the plans of 
every building, during the life of the building, for 
which the department issued a building permit. 

Exceptions: 

1. Single or multiple dwellings not more than two 
stories and basement in height. 

2. Garages and other structures appurtenant to 
buildings listed in Exception 1. 

3. Farm or ranch buildings appurtenant to build- 
ings listed in Exception 1. 

4. Any one-story building where the span between 
bearing walls does not exceed 25 feet (7620 
mm), except a steel frame or concrete building. 

All plans for common interest develop- 
ments as defined in Section 1351 of the Cali- 
fornia Civil Code shall be retained. For 
additional information regarding plan retention 
and reproduction of plans by an enforcing 



agency, see Health and Safety Code Sections 
19850 through 19852. 

1.8.4.4 Inspections. Construction or work for which a 
permit is required shall be subject to inspection by the 
building official and such construction or work shall 
remain accessible and exposed for inspection purposes 
until approved. Approval as a result of an inspection 
shall not be construed to be an approval of a violation of 
the provisions of this code or other regulations of the 
Department of Housing and Community Development. 

1.8.5 Right of Entry for Enforcement. 

1.8.5.1 General. Subject to other provisions of law, offi- 
cers and agents of the enforcing agency may enter and 
inspect public and private properties to secure compli- 
ance with the rules and regulations promulgated by the 
Department of Housing and Community Development. 
For limitations and additional information regarding 
enforcement, see the following: 

1. For applications subject to State Housing Law as 
referenced in Section 1.8.3.2.1 of this code, refer to 
Health and Safety Code, Division 13, Part 1.5, com- 
mencing with Section 17910 and California Code of 
Regulations, Title 25, Division 1, Chapter 1, Sub- 
chapter 1, commencing with Section 1. 

2. For applications subject to the Mobilehome Parks Act 
as referenced in Section 1.8.3.2.2 of this code, refer to 
Health and Safety Code, Division 13, Part 2.1, com- 
mencing with Section 18200 and California Code of 
Regulations, Title 25, Division 1, Chapter 2, com- 
mencing with Section 1000. 

3. For applications subject to the Special Occupancy 
Parks Act as referenced in Section 1.8.3.2.3 of this 
code, refer to Health and Safety Code Division 13, 
Part 2.3, commencing with Section 18860 and Cali- 
fornia Code of Regulations, Title 25, Division 1, 
Chapter 2.2, commencing with Section 2000. 

4. For applications subject to the Employee HousingAct 
as referenced in Section 1.8.3.2.4 of this code, refer to 
Health and Safety Code, Division 13, Part 1, com- 
mencing with Section 1 7000 and California Code of 
Regulations, Title 25, Division 1, Chapter 1, Sub- 
chapter 3, commencing with Section 600. 

5. For applications subject to the Factory-Built Housing 
Law as referenced in Section 1.8.3.2.5 of this code, 
refer to Health and Safety Code, Division 13, Part 6, 
commencing with Section 19960 and California Code 
of Regulations, Title 25, Division 1, Chapter 3, Sub- 
chapter 1, commencing with Section 3000. 

1.8.6 Local Modification by Ordinance or Regulation. 
1.8.6.1 General. Subject to other provisions of law, a city, 
county, or city and county may make changes to the pro- 
visions adopted by the Department of Housing and Com- 
munity Development. If any city, county, or city and county 
does not amend, add, or repeal by local ordinances or reg- 
ulations the provisions published in this code or other reg- 
ulations promulgated by the Department of Housing and 
Community Development, those provisions shall be appli- 
cable and shall become effective 180 days after publico- 



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tion by the California Building Standards Commission. 
Amendments, additions, and deletions to this code adopted 
by a city, county, or city and county pursuant to California 
Health and Safety Code Sections 17958.5, 17958.7, and 
18941.5, together with all applicable portions of this code, 
shall also become effective 180 days after publication of 
the California Building Standards Code by the California 
Building Standards Commission. 

1.8.6.2 Findings, Filings, and Rejections of Local Mod- 
ifications. Prior to making any modifications or estab- 
lishing more restrictive building standards, the governing 
body shall make express findings and filings, as required 
by California Health and Safety Code Section 17958.7, 
showing that such modifications are reasonably neces- 
sary due to local climatic, geological, or topographical 
conditions. No modification shall become effective or 
operative unless the following requirements are met: 

1. The express findings shall be made available as a 
public record. 

2. A copy of the modification and express finding, each 
document marked to cross-reference the other, shall 
be filed with the California Building Standards 
Commission for a city, county, or a city and county, 
and with the Department of Housing and Commu- 
nity Development for fire protection districts, 

3. The California Building Standards Commission has 
not rejected the modification or change. 

Nothing in this section shall limit the authority 
of fire protection districts pursuant to California 
Health and Safety Code Section 13869. 7(a). 

1.8.7 Alternate Materials, Designs, Tests, and Methods of 
Construction. 

1.8. 7.1 General. The provisions of this code as adopted 
by the Department of Housing and Community Develop- 
ment are not intended to prevent the use of any alternate 
material, appliance, installation, device, arrangement, 
design, or method of construction not specifically pre- 
scribed by this code. Consideration and approval of 
alternates shall comply with Section 1.8.7.2 for local 
building departments and Section 1.8. 7.3 for the Depart- 
ment of Housing and Community Development. 

1. 8. 7.2 Local Building Departments. The building depart- 
ment of any city, county, or city and county may approve 
alternates for use in the erection, construction, recon- 
struction, movement, enlargement, conversion, alteration, 
repair, removal, demolition, or arrangement of an apart- 
ment house, hotel, motel, lodging house, or dwelling or an 
accessory structure, except for the following: 

1. Structures located in mobilehome parks as defined 
in California Health and Safety Code Section 18214. 

2. Structures located in special occupancy parks as 
defined in California Health and Safety Code Sec- 
tion 18862,43. 

3. Factoiy -built housing as defined in California 
Health and Safety Code Section 19971. 



1.8. 7.2.1 Approval of Alternates. The consideration 
and approval of alternates by a local building 
department shall comply with the f ollowing proce- 
dures and limitations: 

1. The approval shall be granted on a case-by- 
case basis. 

2. Evidence shall be submitted to substantiate 
claims that the proposed alternate, in perform- 
ance, safety, and protection of life and health, 
conforms to, or is at least equivalent to, the 
standards contained in this code and other rides 
and regulations promulgated by the Department 
of Housing and Community Development 

3. The local building department may require tests 
performed by an approved testing agency at the 
expense of the owner or owner s agent as proof 
of compliance. 

4. If the proposed alternate is related to accessibil- 
ity in covered multifamily dwellings or facilities 
serving "COVERED MULTIFAMILY 
DWELLINGS'' as defined in Chapter 11 A of the 
CBC the proposed alternate must also meet the 
threshold set for "EQUIVALENT FACILITA- 
TION" as defined in Chapter HA of the CBC. 

For additional information regarding approval 
of alternates by a local building department pur- 
suant to the State Housing Law, see California 
Health and Safety Code Section 1 7951(e) and Cali- 
fornia Code of Regulations, Title 25, Division 1, 
Chapter 1, Subchapter 1. 

1.8. 7.3 Department of Housing and Community Devel- 
opment. The Department of Housing and Community 
Development may approve alternates for use in the erec- 
tion, construction, reconstruction, movement, enlargement, 
conversion, alteration, repair, removal, or demolition of an 
apartment house, hotel, motel, lodging house, dwelling, or 
an accessory thereto. The consideration and appmval of 
alternates shall comply with the following: 

1. The department may require tests at the expense of 
the owner or owner s agent to substantiate compli- 
ance with the California Building Standards Code. 

2. The approved alternate shall, for its intended pur- 
pose, be at least equivalent in performance and 
safety to the materials, designs, tests, or methods of 
construction prescribed by this code. 

1.8.8 Appeals Board. 

1.8.8.1 General. Every city, county, or city and county 
shall establish a process to hear and decide appeals of 
orders, decisions, and determinations made by the enforc- 
ing agency relative to the application and interpretation of 
this code and other regulations governing use, mainte- 
nance and change of occupancy. TJie governing body of 
any city, county, or city and county may establish a local 
appeals board and a housing appeals board to sen>e this 
purpose. Members of the appeals board(s) shall not be 
employees of the enforcing agency and shall be knowl- 



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edgeable in the applicable building codes, regulations and 
ordinances as determined by the governing body of the 
city, county, or city and county. 

Where no such appeals boards or agencies have been 
established, the governing body of the city, county, or city 
and county shall serve as the local appeals board or hous- 
ing appeals board as specified in California Health and 
Safety Code Sections 1 7920.5 and 1 7920.6. 

1.8.8.2 Definitions. The following terms shall for the 
purposes of this section have the meaning shown. 

Housing Appeals Board. The board or agency of a city, 
county or city and county which is authorized by the gov- 
erning body of the city county, or city and county to hear 
appeals regarding the requirements of the city, county, or 
city and county relating to the use, maintenance, and 
change of occupancy of buildings and structures, includ- 
ing requirements governing alteration, additions, repair 
demolition, and moving. In any area in which there is no 
such board or agency, "housing appeals board ^ means 
the local appeals board having jurisdiction over the area. 

Local Appeals Board. The board or agency of a city, 
county, or city and county which is authorized by the gov- 
erning body of the city, county, or city and county to hear 
appeals regarding the building requirements of the city, 
county, or city and county. In any area in which there is 
no such board or agency, "local appeals board" means 
the governing body of the city, county, or city and county 
having jurisdiction over the area. 

1.8.8.3 Appeals. Except as otherwise provided by law, 
any person, firm, or corporation adversely affected by a 
decision, order, or determination by a city, county, or city 
and county relating to the application of building stan- 
dards published in the California Building Standards 
Code, or any other applicable rule or regulation adopted 
by the Department of Housing and Community Develop- 
ment, or any lawfully enacted ordinance by a city, county, 
or city and county, may appeal the issue for resolution 
to the local appeals board or housing appeals board as 
appropriate. 

The local appeals board shall hear appeals relating 
to new building construction and the housing appeals 
board shall hear appeals relating to existing buildings. 
1.8.9 Unsafe Buildings or Structures. 

1.8.9.1 Authority to Enforce. Subject to other provisions 
of law, the administration, enforcement, actions, pro- 
ceedings, abatement, violations, and penalties for unsafe 
buildings and structures are contained in the following 
statutes and regulations: 

1. For applications subject to State Housing Law as 
referenced in Section 1.8.3.2.1 of this code, refer to 
Health and Safety Code, Division 13, Part 1.5, com- 
mencing with Section 1 7910 and California Code of 
Regulations, Title 25, Division 1, Chapter 1, Sub- 
chapter 1, commencing with Section 1. 

2. For appl ications subject to the Mobil ehome Parks A ct 
as referenced in Section L8.3.2.2 of this code, refer to 
Health and Safety Code, Division 13, Part 2.1, com- 



mencing with Section 18200 and California Code of 
Regulations, Title 25, Division 1, Chapter 2, com- 
mencing with Section 1 000. 

3. For applications subject to the Special Occupancy 
Parks Act as referenced in Section 1.8.3.2.3 of this 
code, refer to Health and Safety Code, Division 1 3, 
Part 2.3, commencing with Section 18860 and Cali- 
fornia Code of Regulations, Title 25, Division J, 
Chapter 2.2, commencing with Section 2000. 

4. For applications subject to the Employee Housing Act 
as referenced in Section 1 .8.3.2.4 of this code, refer to 
Health and Safety Code, Division 13, Part I, com- 
mencing with Section 1 7000 and California Code of 
Regulations, Title 25, Division I , Chapter 1, Sub- 
chapter 3, commencing with Section 600. 

5. For applications subject to the Factory-Built Housing 
Law as referenced in Section 1.8.3.2.5 of this code, 
refer to Health and Safety Code, Division 13, Part 6, 
commencing with Section 19960 and California Code 
of Regulations, Title 25, Division J, Chapter 3, Sub- 
chapter 1, commencing with Section 3000. 

1.8.9.2 Actions and Proceedings. Subject to other pro- 
visions of law, punishments, penalties, and fines for vio- 
lations of building standards are contained in the 
following statutes and regulations: 

1. For applications subject to the State Housing Law 
as referenced in Section L8.3.2. 1 of this code, refer 
to Health and Safety Code, Division 13, Part 1.5, 
commencing with Section 17910 and California 
Code of Regulations, Title 25, Division 1, Chapter 1, 
Subchapter 1, commencing with Section 1. 

2. For applications subject to the Mobilehome Parks 
Act as referenced in Section 1.8,3.2.2 of this code, 
refer to Health and Safety Code, Division 13, Part 
2.1, commencing with Section 18200 and California 
Code of Regulations, Tide 25, Division 1, Chapter 2, 
commencing with Section 1000. 

3. For applications subject to the Special Occupancy 
Parks Act as referenced in Section 1.8.3.2.3. of this 
code, refer to Health and Safety Code, Division 13, 
Part 2.3, commencing with Section 18860 and Cal- 
ifornia Code of Regulations, Title 25, Di vision 1, 
Chapter 2.2, commencing with Section 2000. 

4. For applications subject to the Employee Housing 
Act as referenced in Section 1 .8.3.2.4 of this code, 
refer to Health and Safety Code, Division 13, Part 1, 
commencing with Section 17000 and California 
Code of Regulations, Title 25, Division 1, Chapter 1, 
Subchapter 3, commencing with Section 600. 

5. For applications subject to the Factory-Built Housing 
Law as referenced in Section 1 .8.3.2.5 of this code, 
refer to Health and Safety Code, Division 13, Part 6, 
commencing with Section 19960 and California Code 
of Regulations, Title 25, Division 1, Chapter 3, Sub- 
chapter 1, commencing with Section 3000. 

1.8 JO Other Building Regulations. 

1.8.10.1 Existing Structures. Not withstanding other pro- 
visions of law, the replacement, retention, and extension 
of original materials and the use of original methods of 



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construction for any existing building or accessory struc- 
ture, or portions thereof] shall be permitted. For addi- 
tional information, see California Health and Safety 
Code Sections 1 7912 and I 7958. 8. 

.1.8.10.2 Moved Structures. Subject to the requirements 
o f California Health and Safety Code Sections 179223 
and 17958.9, local ordinances or regulations relating to 
a moved residential or accessory structure shall, after 
July f 19 78, permit the retention of existing materials 
and methods of construction so long as the structure does 
not become or continue to be a substandard building. 
Note: 

Authority Cited - Health and Safety Code Sections 1 7040, 
17050, 17920.9, 17921, 17921.3, 17921.6, 17921.10, 
17922, 17922.6, .17922.12, .17927, 17928, 17959.6, 18300, 
18552, 18554, 18620, 18630, 18640, 18670, 18690, 
18691, 18865, 18871,3, 18871.4, 18873, 18873.1, 
188 73.2, 18873.3, 18873.4, 18873.5, 18938.3, 18944.11, 
and 19990; and Government Code Section 12955.1. 
References - Health and Safety Code Sections 1 7000 
through 17062.5, 17910 through 17995.5, 18200 through 
18700, 18860 through 18874, and 19960 through 19997; 
and Government Code Sections 12955.1 and 12955.1.1. 

1. 9. Division of the State Architect. 

1.9.1 Division of the State Architect - Access Compliance. 

Note: For applications listed in Section 1.9,1 of the Califor- 
nia Building Code, regulated by the Division of the State 
Architect - Access Compliance see California Code of Reg- 
ulations, Title 24, Part 2 (California Building Code), Chap- 
ter 1 (Division I California . Idministratioii) under authority 
cited by Government Code Section 4450 and in reference 
cited by Government Code Sections 4450 through 4461, 
12955.1, and Health and Safety Code Sections' 18949, 1 f 
19952 through 19959. 

L 9. L 1 A dopting Agency Identification. 
The provisions of this code applicable to buildings iden- 
tified in this Subsection 1.9.1 will be identified in the 
Matrix Adoption Tables under the acronym DSA AC. 

1.9.2 Division of the State Architect - Structural Safety. 
1.9.2.1 DSA-SS (Division of the State Architect - Struc- 
tural Safety). 

Application - Public elementary and secondary schools, 
community college buildings, and state-owned or state- 
leased essential services buildings. 
Enforcing Agency - (Division of the State Architect - 
Structural Safety) (DSA-SS). 

The Division of the State Architect has been dele- 
gated the responsibility and authority by the Department 
of General Services to review and approve the design and 
observe the construction of public elementary and sec- 
ondary schools, community colleges, and state-owned or 
state-leased essential services buildings. 

Authority Cited - Education Code Section 17310 
and 81142, and Health and Safety Code Section 16022. 

References -Education Code Sections 17280 through 
17317 and 81130 through 81147, and Health and Safety 
Code Sections 16000 through 16023. 



1. 9. 2. 1. 1 A. dopting Agency Identification. 

The pro visions of this code applicable to buildings 
identified in this Subsection 1.9.2 will be identified 
in the Matrix Adoption Tables under the acronym 
DSA SS. 

1.9.2.2 DSA-SS/CC (Division of the State Architect - 
Structural Safety/Community Colleges). 

Application - Community Colleges. 

The Division of the State Architect has been dele- 
gated the authority by the Department of General Serv- 
ices to promulgate alternate building standards for 
application to community colleges, which a community 
college may elect to use in lieu of standards promulgated 
by DSA-SS in accordance with Section 1.9.2.1. Refer to 
Title 24, Part 2, Section 1.9,2.2. 

Enforcing Agency - Division of the State Architect - 
Structural Safety/Community Colleges (DSA-SS/CC). 

The Division of the State Architect has been dele- 
gated the authority by the Department of General Serv- 
ices to review and approve the design and oversee 
construction of community colleges electing to use the 
alternative building standards as provided in this section. 

Authority Cited - Education Code Section 81053. 

References - Education Code Sections 81052, 81053, 
and 81130 through 81147. 

1.9.2.2.1 Adopting Agency Identification. 

The pro visions of this code applicable to buildings 
identified in this Subsection 1.9.2.2 will be identi- 
fied in the Matrix Adoption Tables under the 
acronym DSA SS/CC. 

LI 0.0 Office of Statewide Health Planning and Development 

1.10.1 OSHPD 1. Specific scope of application of the agency 
responsible for enforcement, enforcement agency, specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

OSHPD 1 

Application - General acute-care hospitals and acute 
psychiatric hospitals, excluding distinct part units or dis- 
tinct part freestanding buildings providing skilled nurs- 
ing or intermediate-care services. For Structural 
Regulations: Skilled nursing facilities and/or intermedi- 
ate-care facilities except those skilled nursing facilities 
and intermediate-care facilities of single story Type K 
wood or light steel-frame construction, 

Enforcing Agency - Office of Statewide Health Plan- 
ning and Development (OSHPD). The office shall 
enforce the Division of the State Architect access com- 
pliance regulations and the regulations of the Office of 
the State Fire Marshal for the above stated facility types. 
1.10.1.1 Applicable Administrative Standards. 

I. Title 24, Part f California Code of Regulations: 
Chapters 6 and 7. 



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2. Title 24, Part 2, California Code of Regulations: 
Sections 1.1.0 and L I 0.0, Chapter 1, Division I and 
Sections 101-117, Chapter /, Division 11 

1.10.L2 Applicable Building Standards. California Build- 
ing Standards Code, Title 24, Parts 2, 3, 4, 5, 9, 10, and 11 

Authority Cited ~ Health and Safety Code Sections 
127010, 127015, 1275, and 129850, 

References - Health and Safety Code Sections 19958, 
127010, 127015, 129680, 1275, and 129675 through 
130070. 

L 10.1.3 Adopting Agency Identification. 

The provisions of this code applicable to buildings iden- 
tified in this Subsection LI 0.1 will be identified in the 
Matrix Adoption Tables under the acronym OSHPD 1. 

1.10.2 OSHPD 2. Specific scope of application of the agency 
responsible for enforcement, enforcement agency, specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated, 

OSHPD 2 

Application - Skilled nursing facilities and intermedi- 
ate-care facilities, including distinct part skilled nursing 
and intermediate-care services on a general acute-care 
or acute psychiatric hospital license, provided either in 
a rate unit or a freestanding building. For Structural 
Regulations: Single-story, Type V skilled nursing facility 
and/or intermediate-care facilities utilizing wood or light 
steel-frame construction. 

Enforcing Agency - Office of Statewide Health Plan- 
ning and Development (OSHPD). The office shall also 
enforce the Division of the State Architect access com- 
pliance regulations and the regulations of the Office of 
the State Fire Marshal for the above stated facility type. 

1.10.2. 1 Applicable Administrative Standards. 

L Title 24, Part 1, California Code of Regulations: 
Chapter 7. 

2. Title 24, Part 2, California Code of Regulations: 
Sections 1.1.0 and L I 0.0, Chapter 1, Division I and 
Sections 101-117, Chapter 1, Division II. 

1.10.2.2 Applicable Building Standards. California 
Building Standards Code, Title 24, Parts 2, 3, 4, 5, 9, 10, 
and 11. 

Authority Cited - Health and Safety Code Sections 
127010, 127015, 1275, and 129850. 

References - Health and Safety Code Sections 127010, 
127015, 1275, and 129680. 

1. 1 0.2.3 Adopting Agency Identification. 

The provisions of this code applicable to buildings iden- 
tified in this Subsection LI 0.2 will be identified in the 
Matrix Adoption Tables under the acronym OSHPD 2. 

LI 0.3 OSHPD 3. Specific scope of application of the agency 
responsible for enforcement, enforcement agency, specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 



OSHPD 3 

Application - Licensed clinics and any freestanding 
building under a hospital license where outpatient clin- 
ical services are provided. 
Enforcing Agency - Local building departmen t, 
1.10.3. 1 Applicable Administrative Standards. 

1. Title 24, Part 1, California Code of Regulations: 
Chapter 7. 

2. Title 24, Part 2, California Code of Regulations: 
Sections 1.1.0 and 1. 1 0.0, Chapter 1, Division 1 and 
Sections 101-117, Chapter 1, Division 11. 

1.103.2 Applicable Building Standards. California 
Building Standards Code, Title 24, Parts 2, 3, 4, 5, 9, 10, 
and 1 L 

Authority Cited - Health and Safely Code Sections 
127010, 127015, and 1226, 

References - Health and Safety Code Sections 12701 0, 
127015, 129885. and 1226, Government Code Section 
54350, and State Constitution Artie 11, Section 7. 

/. 10.3.3 Adopting Agency identification. 

The provisions of this code applicable to buildings iden- 
tified in this Subsection 1.10.3 will be identified in the 
Matrix Adoption Tables under the acronym OSHPD 3. 

1.10.4 OSHPD 4. Specific scope of application of the agency 
responsible for enforcement, enforcement agency, specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

OSHPD 4 

Application - Correctional Treatment Centers. 

Enforcing Agency -Office of Statewide Llcalth Planning 
and Development (OSHPD). The office shall also enforce 
the Division of the State Architect access compliance reg- 
ulations and the regulations of the Office of the State Fire 
Marshal for the above stated facility types. 

1.10.4. 1 Applicable Administrative Standards. 

1. Title 24, Part 1, California Code of Regulations : 
Chapter 7. 

2. Title 24, Part 2, California Code of Regulations: 
Sections 1.1.0 and 1.10.0, Chapter 1, Division 1 and 
Sections 101-117, Chapter 1, Division 11. 

1.10.4.2 Applicable Building Standards. California 
Building Standards Code, Title 24, Parts 2, 3, 4, 5, 9, 10 
and 11. 

Authority Cited - Health and Safety Code Sections 
127010, 127015, and 129790. 

References - Health and Safety Code Sections 127010, 
127015, 1275, and 129675 through 130070. 

1.10.4.3. Adopting Agency Identification. 

The provisions of this code applicable to buildings iden- 
tified in this Subsection 1.10.4 will be identified in the 
Matrix Adoption Tables under the acronym OS1TPD 4. 



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1.11.0 Office of the State Fire Marshal 

1.1 LI SFM-Offtce of the State Fire Marshal Specific scope 
of application of the agency responsible for enforcement, the 
enforcement agency and the specific authority to adopt and 
enforce such provisions of this code, unless otherwise stated. 

Application: 

Institutional y Educational, or any Similar Occupancy, Any 

building or structure used or intended for use as an asylum, 
jail, mental hospital, hospital, sanitarium, home for the aged, 
children s nursery, children s home, school, or any similar 
occupancy of any capacity. 

Authority Cited - Health and Safety Code Section 13143. 
Ref erence - Health and Saf ety Code Section 13143. 

Assembly or Similar Place of Assemblage. Any theater, dance- 
hall, skating rink, auditorium, assembly hall, meeting hall, 
nightclub, fair building, or similar place of assemblage where 
50 or more persons may gather together in a building, room 
or structure for the purpose of amusement, entertainment, 
instruction, deliberation, worship, drinking or dining, await- 
ing transportation, or education. 

Authority Cited - Health and Safety Code Section 13 /43. 
Reference - Health and Safety Code Section 13143. 

Small Family Day-Care Homes. 

Authority Cited - Health and Safety Code Sections 1597.45, 
1597.54, 13143, and 17921. 

Ref erence - Health and Safety Code Section 13143. 
Large Family Day-Care Homes. 

Authority Cited - Health and Safety Code Sections 1597.46, 
1597.54, and 17921. 

Reference - Health and Safety Code Section 13143. 

Residential Facilities and Residential Facilities for the Elderly. 
Authority Cited - Health and Safety Code Section 13133. 
Reference - Health and Saf ety Code Section 13143. 

Any State Institution or Other State-Owned or State-Occu- 
pied Building. 

Authority Cited - Health and Safety Code Section 13108. 
Reference - Health and Safety Code Section 13143. 

High -Rise Structures. 

Authority Cited - Health and Safety Code Section 13211. 
Reference - Health and Safety Code Section 13143. 

Motion Picture Production Studios. 

Authority Cited - Health and Safety Code Section 13143.1 . 
Reference - Health and Safety Code Section 13143. 



Organized Camps. 

Authority Cited - Health and Safety Code Section 18897.3. 
Ref erence - Health and Safety Code Section 13143. 

Residential. 

All hotels, motels, lodging houses, apartment houses and 
dwellings, including congregate residences and buildings and 
structures accessory thereto. Multiple-story structures exist- 
ing on January f 1975, let for human habitation, including 
and limited to, hotels, motels, apartment houses, less than 75 
feet (22 860 mm) above the lowest floor level having building 
access, wherein rooms used for sleeping are let above the 
ground floor 

Authority Cited - Health and Safety Code Sections 13143.2 
and 17921. 

Reference - Health and Safety Code Section 13143. 
Residential Care Facilities. 

Certified family-care homes, out-of-home placement facili- 
ties, halfway houses, drug and/or alcohol rehabilitation facil- 
ities, and any building or structure used or intended for use 
as a home or institution for the housing of any person of any 
age when such person is referred to or placed within such 
home or institution for protective social care and supervision 
services by any governmental agency. 

Authority Cited - Health and Safety Code Section 13143.6. 
Reference - Health and Safety Code Section 13143. 

Tents, Awnings, or Other Fabric Enclosures Used in Con- 
nection with Any Occupancy. 

Authority Cited - Health and Safety Code Section 13116. 
Reference - Health and Safety Code Section 13143. 

Fire Alarm Devices, Equipment, and Systems in Connec- 
tion with Any Occupancy. 

Authority Cited - Health and Safety Code Section 13114. 
Reference - Health and Safety Code Section 13143. 

Hazardous Materials. 

Authority Cited - Health and Safety Code Section 13143.9. 
Reference - Health and Safety Code Section 13143. 

Flammable and Combustible Liquids. Authority Cited - 

Health and Safety Code Section 13143.6. 

Reference - Health and Safety Code Section 13143. 

Public School A utomatic Fire Detection, Alarm, and Sprin- 
kler Systems. 

Authority Cited - Health and Safety Code Section 13143 and 
California Education Code Article 7.5, Sections 17074,50, 
17074.52, and 17074.54. 



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References — Government Code Section 1 1152.5, Health and 
Safety Code Section 13143 and California Education Code 
Chapter 12.5, Leroy F Greene School Facilities Act of 1998, 
Article I. 

Wildland-Urban Interface Fire Area, 

Authority Cited - Health and Safety Code Sections 13143, 
13108.5(a), and 18949.2(b) and (c); and Government Code 
Section 5 1 189. 

References - Health and Safety Code Sections 13143, Gov- 
ernment Code Sections 511 76, 511 77, 511 78, and 511 79; and 
Public Resources Code Sections 4201 through 4204. 
1.11.2 Duties and Powers of the Enforcing Agency. 
1.11.2.1 En force m en t. 

1.11.2. 1.1 The responsibility for enforcement of 
building standards adopted by the State Fire Mar- 
shal and published in the California Building Stan- 
dards Code relating to fire and panic safety and other 
regulations of the State Fire Marshal shall except as 
provided in Section 1.11.2.1.2 be as follows: 

1 . The city, county, or city and county, with juris- 
diction in the area affected by the standard or 
regulation shall delegate the enforcement of the 
building standards relating to fire and panic 
safety and other regulations of the State Fire 
Marshal as they relate to Group R-3 occupan- 
cies, as described in Section 310.1 of Part 2 of 
the California Building Standards Code, to 
either of the following: 

1.1. The chief of the fire authority of the city, 
county, or city, and county or an authorized rep- 
resentative. 

1.2. The chief building official of the city, county, 
or city and county, or an authorized representa- 
tive. 

2. The chief of any city or county fire department 
or of any fire protection district, and authorized 
representatives, shall enforce within the juris- 
diction the building standards and other regu- 
lations of the State Fire Marshal, except those 
described in Item 1 or 4. 

3. The State Fire Marshal shall have authority to 
enforce the building standards and other regu- 
lations of the State Fire Marshal in areas out- 
side of corporate cities and districts providing 
fire protection services. 

4. The State Fire Marshal shall have authority to 
enforce the building standards and other regu- 
lations of the State Fire Marshal in corporate 
cities and districts providing fire-protection 
services on request of the chief fire official or 
the governing body. 

5. Any fee charged pursuant to the enforcement 
authority of this section shall not exceed the 
estimated reasonable cost of providing the serv- 
ice for which the fee is charged pursuant to Sec- 
tion 66014 of the Government Code. 



1.11.2. 1.2 Pursuant to Health and Safety Code Sec- 
tion 13108, and except as otherwise provided in this 
section, building standards adopted by the State Fire 
Marshal published in the California Building Stan- 
dards Code relating to fire and panic safety shall be 
enforced by the State Fire Marshal in all state- 
owned buildings, state-occupied buildings, and state 
institutions throughout the state. Upon the written 
request of the chief fire official of any city, county, or 
fire -protection district, the State Fire Marshal may 
authorize such chief fire official and his or her 
authorized representatives, in their geographical 
area of responsibility, to make fire-prevent ion 
inspections of state-owned or state-occupied build- 
ings, other than state institutions, for the purpose of 
enforcing the regulations relating to fire and panic 
safety adopted by the State Fire Marshal pursuant to 
this section and building standards relating to fire 
and panic safety published in the California Build- 
ing Standards Code. Authorization from the State 
Fire Marshal shall be limited to those fire depart- 
ments or fire districts which maintain a lire-preven- 
tion bureau staffed by paid personnel. 

Pursuant to Health and Safety Code Section 
13108, any requirement or order made by any chief 
fire official who is authorized by the State Fire Mar- 
shal to make fire- prevent ion inspections oj state- 
owned or state-occupied buildings, other than state 
institutions, may be appealed to the State Fire Mar- 
shal. The State Fire Marshal shall, upon receiving 
an appeal and subject to the provisions of Chapter 
5 (commencing with Section 18945) of Part 2.5 of 
Division 13 of the Health and Safety Code, deter- 
mine if the requirement or order made is reasonably 
consistent with the fire and panic safety regulations 
adopted by the State Fire Marshal and building 
standards relating to fire and panic saf ety published 
in the California Building Code. 

Any person may request a code interpretation 
from the State Fire Marshal relative to the intent of 
any regulation or provision adopted by the State Fire 
Marshal. When the request relates to a specific proj- 
ect, occupancy or building, the State Fire Marshal 
shall review the issue with the appropriate local 
enforcing agency prior to rendering such code inter- 
pretation. 

1.11.2.1.3 Pursuant to Health and Safety Code Sec- 
tion 13112, any person who violates any order, rule 
or regulation of the State Fire Marshal is guilty of a 
misdemeanor punishable by a fine of not less than 
$100.00 or more than $500.00, or by imprisonment 
for not less than six months, or by both. A person is 
guilty of a separa te offense each day during wh ich 
he or she commits, con tinues, or permits a violation 
of any provision of, or any order, rule or regulation 
of, the State Fire Marshal as contained m this code. 



2013 CALIFORNIA PLUMBING CODE 



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Any inspection authority who, in the exercise of 
his or her authority as a deputy State Fire Marshal, 
causes any legal complaints to be filed or any arrest 
to be made shall notify the State Fire Marshal imme- 
diately following such action. 

LI 1.2.2 Right of Entry. The fire chief of any city, county, 
or fire-protection district, or such persons authorized 
representative, may enter any state institution or any 
other state-owned or state-occupied building for the pur- 
pose of preparing a fire-suppression preplanning pro- 
gram or for the purpose of in vestigating any fire in a 
state-occupied building. 

The State Fire Marshal, his or her deputies or 
salaried assistants, the chief of any city or county fire 
department or fire-protection district and his or her 
authorized representatives may enter any building or 
premises not used for dwelling purposes at any reason- 
able hour for the purpose of enforcing this chapter. The 
o wner, lessee, manager, or opera tor of any such build- 
ing or premises shall permit the State Fire Marshal, his 
or her deputies or salaried assistants and the chief of any 
city or county fire department or fire-protection district 
and his or her authorized representatives to enter and 
inspect them at the time and for the purpose stated in this 
section. 

1.11.2.3 More Restrictive Fire and Panic Safety Build- 
ing Standards. 

I A 1.23 A Any fire-protection district organized pur- 
suant to Health and Safety Code Part 2.7 (com- 
mencing with Section J 3800) of Division 12 may 
adopt building standards relating to fire and panic 
safety that are more stringent than those building 
standards adopted by the State Fire Marshal and 
contained in the California Building Standards 
Code. For these purposes, the district board shall 
be deemed a legislative body and the district shall be 
deemed a local agency. Any changes or modifica- 
tions that are more stringent than the requirements 
published in the California Building Standards Code 
relating to fire and panic safety shall be subject to 
Section 1.1.8.1. 

1.11.2.3.2 A ny fire protection district that proposes 
to adopt an ordinance pursuant to this section shall, 
not less than 30 days prior to noticing a proposed 
ordinance for public hearing, provide a copy of that 
ordinance, together with the adopted findings made 
pursuant to Section 1.11.2.3. 1, to the city, county, or 
city and county where the ordinance will apply. The 
city, county, or city and county may provide the dis- 
trict with written comments, which shall become 
part of the fire-protection districts public hearing 
record. 

1. 11.2.3.3 The fire-protection district shall transmit the 
adopted ordinance to the city, county, or city and 
county where the ordinance will apply. The legislative 
body of the city, county, or city and county may ratify, 
modify or deny an adopted ordinance and transmit its 



determination to the district within 15 days of the 
determination. Any modification or denial of an 
adopted ordinance shall include a written statement 
describing the reasons for any modifications or denial. 
No ordinance adopted by the district shall be effective 
until ratification by the city, county, or city and county 
where the ordinance will apply. Upon ratification of 
an adopted ordinance, the city, county, or city and 
county shall file a copy of the findings of the district, 
and any findings of the city, county, or city and county 
together with the adopted ordinance expressly marked 
and identified to which each finding refers, in accor- 
dance with Section 1.1.8.1(3). 

1. 11.2.4 Request for Alternate Means of Protection. 

Requests for approval to use an alternative material, 
assembly or materials, equipment, method of construc- 
tion, method of installation of equipment, or means of 
protection shall be made in writing to the enforcing 
agency by the owner or the owner s authorized represen- 
tative and shall be accompanied by a full statement of 
the conditions. Sufficient evidence or proof shall be sub- 
mitted to substantiate any claim that may be made 
regarding its conformance. The enforcing agency may 
require tests and the submission of a test report from an 
approved testing organization as set forth in Title 19, 
California Code of Regulation, to substantiate the equiv- 
alency of the proposed alternative means of protection. 

When a request for alternate means of protection 
involves hazardous materials, the Authority Having 
Jurisdiction may consider implementation of the findings 
and recommendations identified in a Risk Management 
Plan (RMP) developed in accordance with Title 19, Divi- 
sion 2, Chapter 4.5, Article 3. 

Approval of a request for use of an alternative mate- 
rial, assembly of materials, equipment, method of con- 
struction, method of installation of equipment, or means 
of protection made pursuant to these provisions shall be 
limited to the particular case covered by request and 
shall not be construed as establishing any precedent for 
any future request. 

1 A J. 2. 5 Appeals. When a request for an alternate means 
of protection has been denied by the enforcing agency, 
the applicant may file a written appeal to the State Fire 
Marshal for consideration of the applicant s proposal. In 
considering such appeal, the State Fire Marshal may 
seek the advice of the State Board of Fire Services. The 
State Fire Marshal shall, after considering all of the facts 
presented, including any recommendations of the State 
Board of Fire Services, determine if the proposal is for 
the purposes intended, at least equivalent to that speci- 
fied in these regulations in quality, strength, effective- 
ness, fire resistance, durability, and safety, and shall 
transmit such findings and any recommendations to the 
applicant and to the enforcing agency 

1.11.3 Construction Documents. In addition to the provisions 
of this Section, see Title 24, Part 2, California Building Code, 
Appendix Chapter 1, Section 106 for additional requirements. 



16 



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DIVISION S ADMINISTRATION 



/. 11. 3. 1 Public Schools. Plans and specifications for the 
construction, alteration or addition to any building 
owned, leased or rented by any public school district 
shall be submitted to the Division of the State Architect. 

1.11.3.2 Movable Walls and Partitions. Plans or dia- 
grams shall be submitted to the enforcing agency for 
approval before the installation of or rearrangement of 
any movable wall or partition in any occupancy. 
Approval shall be granted only if there is no increase in 
the fire hazard. 

1.11.3.3 New Construction High-Rise Buildings. 

L Complete plans or specifications, or both, shall be 
prepared covering all work required to comply with 
new construction high-rise buildings. Such plans 
and specifications shall be submitted to the enforc- 
ing agency having jurisdiction. 

2. A 11 plans and specifications shall be prepared under 
the responsible charge of an architect or a civil or 
structural engineer authorized by law to develop 
construction plans and specifications, or by both 
such architect and engineer Plans and specifica- 
tions shall be prepared by an engineer duly quali- 
fied in that branch of engineering necessary to 
perf orm such services. A dministration of the work 
of construction shall be under the charge of the 
responsible architect or engineer except that where 
plans and specifications involve alterations or 
repairs, such work of construction may be adminis- 
tered by an engineer duly qualified to perf orm such 
services and holding a valid certificate under Chap- 
ter 7 (commencing with Section 65700) of Division 
3 of the Business and Professions Code for per- 
formance of services in that branch of engineering 
in which said plans, specifications and estimates and 
work of construction are applicable. 

This section shall not be construed as preventing 
the design of fire-extinguishing systems by persons 
holding a C-J6 license issued pursuan t to Division 3, 
Chapter 9, Business and Professions Code. In such 
instances, however, the responsibility charge of this 
section shall prevail. 

1.11.3.4 Existing High -Rise Buildings. 

1. Complete plans or specifications, or both, shall be 
prepared covering all work required by Section 3412 
for existing high-rise buildings. Such plans or spec- 
ifications shall be submitted to the enforcing agency 
having jurisdiction. 

2. When new construction is required to conform with 
the provisions of these regulations, complete plans 
or specifications, or both, shall be prepared in 
accordance with the provisions of this subsection. 
As used in this section " new construction" is not 
intended to include repairs, replacements or minor 
alterations which do not disrupt or appreciably add 
to or aff ect the structural aspects of the building. 

1.11.3.5 Retention of Plans. Refer to Building Standards 
Law, Health and Safety Code Sections 19850 and 19851, 
for permanent retention of plans. 



1.11.4 Fees. 

LI 1.4.1 Other Fees. Pursuant to Health and Safety Code 
Section 13146.2, a city, county, or district which inspects 
a hotel, motel, lodging house, or apartment house may 
charge and collect a fee for the inspection from the owner 
of the structure in an amount, as determined, by the city, 
county, or district, sufficient to pay its costs of that 
inspection. 

LI 1.4.2 Large Family Day Care. Pursuant to Health 
and Safety Code Section 1 597.46, Large Family Day- 
Care Homes, the local government shall process any 
req uired permit as econom ically as possible, and fees 
charged for review shall not exceed the costs of the 
review and permit process. 

L 11.43 High-Rise, Pursuant to Health and Safety Code 
Section 1321 7, High- Rise Structure Inspection: Fees and 
Costs, a local agency which inspects a high-rise structure 
pursuant to Health and Safety Code Section 13217 may 
charge and collect a fee for the inspection from the owner 
of the high-rise structure in an amount, as determined by 
the local agency, sufficient to pay its costs of that inspec- 
tion. 

L 11.4.4 Fire Clearance Preinspection. Pursuant to 
Health and Safety Code Section 13235, Fire Clearance 
Preinspection, Fee; upon receipt of a request from a 
prospective licensee of a community care facility, as 
defined in Section 1502, of a residential-care facility for 
the elderly, as defined in Section 1569.2, or of a child 
day-care facility, as defined in Section 1596.750, the 
local fire enforcing agency, as defined in Section 13244, 
or State Fire Marshal whichever has primary jurisdic- 
tion, shall conduct a preinspection of the facility prior to 
the final fire clearance approval. At the time of the prein- 
spection, the primary fire enforcing agency shall price 
consultation and interpretation of the fire safety regula- 
tions and shall notify- the prospective licensee of the facil- 
ity in writing of the specific fire safety regulations which 
shall be enforced in order to obtain fire clearance 
approval. A fee of not more than $50.00 may be charged 
for the preinspection of a facility with a capacity to serve 
25 or fewer persons. A fee of not more than $100.00 may 
be charged for a preinspection of a facility with a capac- 
ity to serve 26 or more persons. 

LI 1.4. 5 Care Facilities. The primary fire enforcing 
agency shall complete the final fire clearance inspection 
for a community care f acility, residential Leave ' facility for 
the elderly, or child day-care facility within 30 days of 
receipt of the request for the final inspection, or as of the 
date the prospective facility requests the final pre licen- 
sure inspection by the State Department of Social Serv- 
ices, whichever is later. 

Pursuant to Health and Safety Code Section 13235, a 
preinspection fee of not more than $50 may be charged for 
a facility with a capacity to serve 25 or less clients. A fee 
of not more than $100 may be charged for a preinspection 
of a facility with a capacity to serve 26 or more clients. 



2013 CALIFORNIA PLUMBING CODE 



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Pursuant to Health and Safety Code Section 13131.5, 
a reasonable f inal inspection fee, not to exceed the actual 
cost of inspection services necessary to complete a final 
inspection may he charged for occupancies classified as 
residential care facilities for the elderly (RCFE). 

Pursuant to Health and Safety Code Section 1569.84, 
neither the State Fire Marshal nor any local public entity 
shall charge any fee for enforcing fire inspection regula- 
tions pursuant to state law or regulation or local ordi- 
nance, with respect to i es id ential- care I act I ities for the 
elderly (RCFE) which service six or fewer persons. 

1.11.4. 6 Requests of the Office of the State Fire Marshal. 

Whenever a local Authority Having jurisdiction requests 
that the State Fire Marshal perforin plan review and/or 
inspection services related to a building permit, the appli- 
cable fees for such shall be payable to the Office of the 
State Fire Marshal. 

1.11.5 Inspections. Work performed subject to the provisions 
of this code shall comply with the inspection requirements of 
Title 24, Part 2, California Building Standards Code, Sections 
109.1, 109.3, 109.3.4, 109.3.5, 109.3.6, 109.3.8, 109.3.9, 
109.3.10, 109.5, and 109.6 as adopted by the Office of the 
State Fire Marshal 

LI 1.5.1 Existing Group 1-1 or R occupancies. Licensed 
24-hour care in a Group 1-1 or R occupancy in existence 
and originally classified under previously adopted state 
codes shall be rein spec ted under the appropriate previous 
code, provided there is no change in the use or character 
which would place the facility in a different occupancy 
group. 

L1L6 Certificate of Occupancy. A Certificate of Occupancy 
shall be issued as specified in Title 24, Part 2, California 
Building Code, Section 111. 

Exception: Group R-3 and Group U Occupancies. 

1.1 L 7 Temporary Structures and Uses. See Title 24, Part 2, 
California Building Code, Section 107. 

1.11.8 Service Utilities. See Title 24, Part 2, California Build- 
ing Code, Section 112. 

1.11.9 Stop Work Order. See Title 24, Part 2, California 
Building Code, Section 115. 

1. 11.10 Unsafe Buildings, Structures, and Equipment. See 

Title 24, Part 2, California Building Code, Section 116. 

1.1 L 11 Adopting Agency Identification. 

The provisions of this code applicable to buildings identified 
in this section will be identif ied in the Matrix Adoption Tables 
under the acronym SFM. 

LI 2.0 Reserved for the State Librarian. 

L 13. Department of Water Resources (!) WR). 

LI 3.1 Application - Construction, installation, or alteration 

qfgraywater systems for subsurface irrigation and other safe 

uses. 



Enforcing Agency - Local building department or the 
Department of Water Resources. 

Authority Cited - Water Code Sections 14875 through 
14877.3. 

References - Water Code Sections 14875 through 14877.3. 

L 13.2 Application - Installation, construction, alteration, or 
repair of recycled water systems for water closets, urinals, 
trap primers for floor drains, floor sinks and other allowed 
uses. 

Enforcing Agency - State or local agency specified by the 
applicable provisions of law. 

Authority Cited- Water Code Section 13557. 

References - Water Code Section 13553. 

LI 3.3 Adopting Agency Identification. The provisions of this 
code applicable to buildings identified in this section will be 
identified in the Matrix Adoption Tables under the acronym 
DWR. 

1. 14. Reserved for the State Lands Commission. 



18 



2013 CALIFORNIA PLUMBING CODE 



DIVISION II 

ADMINISTRATION 



101.0 General. 

101.1 Title. This document shall be known as the "Uniform 
Plumbing Code," may be cited as such, and will be referred 
to herein as "this code." 

101.2 Scope. The provisions of this code shall apply to the 
erection, installation, alteration, repair, relocation, replace- 
ment, addition to, use, or maintenance of plumbing systems 
within this jurisdiction. 

101.3 Purpose. This code is an ordinance providing mini- 
mum requirements and standards for the protection of the 
public health, safety, and welfare. 

101.4 Conflicts Between Codes. Where the requirements 
within the jurisdiction of this plumbing code conflict with 
the requirements of the mechanical code, this code shall pre- 
vail. In instances where the code, applicable standards, or 
the manufacturer's installation instructions conflict, the more 
stringent provisions shall prevail. Where there is a conflict 
between a general requirement and a specific requirement, 
the specific requirement shall prevail. 

101.5 Plans Required. The Authority Having Jurisdiction 
shall be permitted to require the submission of plans, speci- 
fications, drawings, and such other information in accordance 
with the Authority Having Jurisdiction, prior to the com- 
mencement of, and at a time during the progress of, work reg- 
ulated by this code. 

The issuance of a permit upon plans and specifications 
shall not prevent the Authority Having Jurisdiction from 
thereafter requiring the correction of errors in said plans and 
specifications or from preventing construction operations 
being carried on thereunder where in violation of this code or 
of other pertinent ordinance or from revoking a certificate of 
approval where issued in error. 

101.6 Repairs and Alterations. In existing buildings or 
premises in which plumbing installations are to be altered, 
repaired, or renovated, deviations from the provisions of this 
code are permitted, provided such deviations are found to be 
necessary and are first approved by the Authority Having 
Jurisdiction. 

101.6.1 Building Sewers and Drains. Existing building 
sewers and building drains shall be permitted to be used 
in connection with new buildings or new plumbing and 
drainage work where they are found on examination and 
test to be in accordance with the requirements governing 
new work, and the proper Authority Having Jurisdiction 
shall notify the owner to make changes necessary to be 
in accordance with this code. No building, or part thereof, 
shall be erected or placed over a part of a drainage sys- 
tem that is constructed of materials other than those 
approved elsewhere in this code for use under or within 
a building. 



101.6.2 Openings. Openings into a drainage or vent sys- 
tem, excepting those openings to which plumbing fix- 
tures are properly connected or which constitute vent 
terminals, shall be permanently plugged or capped in an 
approved manner, using the appropriate materials in 
accordance with this code. 

101.7 Maintenance. The plumbing and drainage system of a 
premises under the Authority Having Jurisdiction shall be 
maintained in a sanitary and safe operating condition by the 
owner or the owner's agent. 

101.8 Existing Construction. No provision of this code shall 
be deemed to require a change in a portion of a plumbing or 
drainage system or other work regulated by this code in or on 
an existing building or lot where such work was installed and 
is maintained in accordance with law in effect prior to the 
effective date of this code, except where such plumbing or 
drainage system or other work regulated by this code is deter- 
mined by the Authority Having Jurisdiction to be in fact dan- 
gerous, unsafe, insanitary, or a nuisance and a menace to life, 
health, or property. 

101.9 Additions, Alterations, or Repairs. Additions, alter- 
ations, repairs, and replacement of plumbing systems shall 
comply with the provisions for new systems except as other- 
wise provided in Section 101.11. 

101.10 Appendices. The provisions in the appendices are 
intended to supplement the requirements of this code and 
shall not be considered part of this code unless formally 
adopted as such. 

101.11 Application to Existing Plumbing System. Addi- 
tions, alterations, or repairs shall be permitted to be made to 
a plumbing system without requiring the existing plumbing 
system to be in accordance with the requirements of this code, 
provided the addition, alteration, or repair is in accordance 
with that required for a new plumbing system. Additions, 
alterations, or repairs shall not cause an existing system to 
become unsafe, insanitary, or overloaded. 

101.11.1 Health and Safety. Where compliance with the 
provisions of this code fail to eliminate or alleviate a nui- 
sance, or other dangerous or insanitary condition that 
involves health or safety hazards, the owner or the 
owner's agent shall install such additional plumbing and 
drainage facilities or shall make such repairs or alter- 
ations as ordered by the Authority Having Jurisdiction. 

101.11.2 Existing Installation. Plumbing systems law- 
fully in existence at the time of the adoption of this code 
shall be permitted to have their use, maintenance, or 
repair continued where the use, maintenance, or repair is 
in accordance with the original design and location and 
no hazard to life, health, or property has been created by 
such plumbing system. 



2013 CALIFORNIA PLUMBING CODE 



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DIVISION II ADMINISTRATION 



161.11.3 Changes in Building Occupancy. Plumbing 
systems that are a part of a building or structure under- 
going a change in use or occupancy, as defined in the 
building code, shall be in accordance with the require- 
ments of this code that are applicable to the new use or 
occupancy. 

101.11.4 Operating Condition. Plumbing systems, 
materials, and appurtenances, both existing and new, and 
parts thereof shall be maintained in operating condition. 
Devices or safeguards required by this code shall be 
maintained in accordance with the code edition under 
which installed. The owner or the owner's designated 
agent shall be responsible for maintenance of plumbing 
systems. To determine compliance with this subsection, 
the Authority Having jurisdiction shall be permitted to 
cause a plumbing system to be re in spec ted. 

101.11.5 Moved Buildings. Plumbing systems that are 
part of buildings or structures moved into this jurisdiction 
shall be in accordance with the provisions of this code 
for new installations, except as provided for in Section 
103.5.8.2. 

102.0 Organization and Enforcement. 

102.1 Authority Having Jurisdiction. The Authority Hav- 
ing Jurisdiction shall be the Authority duly appointed to 
enforce this code. For such purposes, the Authority Having 
jurisdiction shal l have the powers of a law enforcement offi- 
cer. The Authority Having Jurisdiction shall have the power 
to render interpretations of this code and to adopt and enforce 
rules and regulations supplemental to this code as deemed 
necessary in order to clarify the appl ication of the provisions 
of this code. Such interpretations, rul es, and regulations shall 
comply with the intent and purpose of this code. 

In accordance with the prescribed procedures and with 
the approval of the appointing authority, the Authority Hav- 
ing Jurisdiction shall be permitted to appoint such number of 
technical officers, inspectors, and other employees as shall be 
authorized from time to time. The Authority Having Juris- 
diction shall be permitted to deputize such inspectors or 
employees as necessary to carry out the functions of the code 
enforcement agency. 

102.2 Duties and Powers of the Authority Having Juris- 
diction. The Authority Having Jurisdiction shall be permit- 
ted to request the assistance and cooperation of other officials 
of this jurisdiction so far as required in the discharge of the 
duties in accordance with this code or other pertinent law or 
ordinance. 

102.2.1 Right of Entry. Where it is necessary to make an 
inspection to enforce the provisions of this code, or 
where the Authority Having Jurisdiction has reasonable 
cause to believe that there exists in a building or upon a 
premises a condition or violation of this code that makes 
the building or premises unsafe, insanitary, dangerous, 
or hazardous, the Authority Having Jurisdiction shall be 
permitted to enter the building or premises at reasonable 



times to inspect or to perform the duties imposed upon 
the Authority Having Jurisdiction by this code, provided 
that where such building or premises is occupied, the 
Authority Having Jurisdiction shall present credentials 
to the occupant and request entry. Where such building or 
premises is unoccupied, the Authority Having Jurisdic- 
tion shall first make a reasonable effort to locate the 
owner or other person having charge or control of the 
building or premises and request entry. Where entry is 
refused, the Authority Having Jurisdiction has recourse 
to every remedy provided by law to secure entry. 

Where the Authority Having Jurisdiction shall have 
first obtained an inspection warrant or other remedy pro- 
vided by law to secure entry, no owner, occupant, or per- 
son having charge, care, or control of a building or 
premises shall fail or neglect, after a request is made as 
herein provided, to promptly permit entry herein by the 
Authority Having Jurisdiction for the purpose of inspec- 
tion and examination pursuant to this code. 

1 02.2.2 Stop Orders. Where work is being done con- 
trary to the provisions of this code, the A uthority Havi ng 
Jurisdiction shall be permitted to order the work stopped 
by notice in writing served on persons engaged in the 
doing or causing such work to be done, and such persons 
shall forthwith stop work until authorized by the Author- 
ity Having Jurisdiction to proceed with the work. 

102.2.3 Authority to Disconnect Utilities in Emergen- 
cies. The Authority Having Jurisdiction shall have the 
authority to disconnect a plumbing system to a building, 
structure, or equipment regulated by this code in case of 
emergency where necessary to eliminate an immediate 
hazard to life or property. 

102.2.4 Authority to Condemn. Where the Authority 
Having Jurisdiction ascertains that a plumbing system 
or portion thereof, regulated by this code, has become 
hazardous to life, health, or property, or has become 
insanitary, the Authority Having Jurisdiction shall order 
in writing that such plumbing either be removed or 
placed in a safe or sanitary condition. The order shall fix 1 
a reasonable time limit for compliance. No person shall 
use or maintain defective plumbing after receiving such 
notice. 

Where such plumbing system is to be disconnected, 
written notice shall be given. In cases of i mmediate dan- 
ger to life or property, such disconnection shall be per- 
mitted to be made immediately without such notice. 

102.2.5 Liability. The Authority Having Jurisdiction 
charged with the enforcement of this code, acting in good 
faith and without malice in the discharge of the Author- 
ity Having Jurisdiction's duties, shall not thereby be ren- 
dered personally liable for damage that accrues to 
persons or property as a result of an act or by reason of 
an act or omission in the discharge of duties. A suit 
brought against the Authority Having Jurisdiction or 
employee because of such act or omission performed in 



20 



2013 CALIFORNIA PLUMBING CODE 



DIVISION II ADMINISTRATION 



the enforcement of provisions of this code shall be 
defended by legal counsel provided by this jurisdiction 
until final termination of such proceedings. 

102.3 Board of Appeals. In order to hear and decide appeals 
of orders, decisions, or determinations made by the Author- 
ity Having Jurisdiction relative to the application and inter- 
pretations of this code, there shall be and is hereby created a 
Board of Appeals consisting of members who are qualified 
by experience and training to pass upon matters pertaining to 
plumbing design, construction, and maintenance and the 
public health aspects of plumbing systems and who are not 
employees of the jurisdiction. The Authority Having Juris- 
diction shall be an ex-officio member and shall act as secre- 
tary to said board but shall have no vote upon a matter before 
the board. The Board of Appeals shall be appointed by the 
governing body and shall hold office at its pleasure. The 
board shall adopt rules of procedure for conducting its busi- 
ness and shall render decisions and findings in writing to the 
appellant with a duplicate copy to the Authority Having 
jurisdiction. 

102.3.1 Limitations of Authority. The Board of Appeals 
shall have no authority relative to interpretation of the 
administrative provisions of this code, nor shall the board 
be empowered to waive requirements of this code. 

102.4 Violations. It shall be unlawful for a person, firm, or 
corporation to erect, construct, enlarge, alter, repair, move, 
improve, remove, convert, demolish, equip, use, or maintain 
plumbing or permit the same to be done in violation of this 
code. 

102.5 Penalties. A person, firm, or corporation violating a 
provision of this code shall be deemed guilty of a misde- 
meanor, and upon conviction thereof, shall be punishable by 
a fine, imprisonment, or both set forth by the governing laws 
of the jurisdiction. Each separate day or portion thereof, dur- 
ing which a violation of this code occurs or continues, shall 
be deemed to constitute a separate offense. 

103.0 Permits and Inspections. 

103.1 Permits Required. It shall be unlawful for a person, 
firm, or corporation to make an installation, alteration, repair, 
replacement, or remodel a plumbing system regulated by this 
code except as permitted in Section 103.1.1, or to cause the 
same to be done without first obtaining a separate plumbing 
permit for each separate building or structure. 

103.1.1 Exempt Work. A permit shall not be required 
for the following: 

(1) The stopping of leaks in drains, soil, waste, or vent 
pipe, provided, however, that a trap, drain pipe, soil, 
waste, or vent pipe become defective and it becomes 
necessary to remove and replace the same with new 
material, the same shall be considered as new work 
and a permit shall be procured and inspection made 
as provided in this code. 

(2) The clearing of stoppages, including the removal 
and reinstallation of water closets, or the repairing of 
leaks in pipes, valves, or fixtures, provided such 



repairs do not involve or require the replacement or 
rearrangement of valves, pipes, or fixtures. 

Exemption from the permit requirements of this 
code shall not be deemed to grant authorization for 
work to be done in violation of the provisions of the 
code or other laws or ordinances of this jurisd iction . 

103.1.2 Licensing. Provision for licensing shall be deter- 
mined by the Authority Having Jurisdiction. 

103.2 Application for Permit. To obtain a permit, the appli- 
cant shall first file an application therefore in writing on a 
form furnished by the Authority Having Jurisdiction for that 
purpose. Such application shall: 

(1) Identify and describe the work to be covered by the per- 
mit for which application is made. 

(2) Describe the land upon which the proposed work is to be 
done by legal description, street address, or similar 
description that will readily identify and definitely locate 
the proposed building or work. 

(3) Indicate the use or occupancy for which the proposed 
work is intended. 

(4) Be accompanied by plans, diagrams, computations, and 
other data in accordance with Section 1 03.2. 1 . 

(5) Be signed by the permittee or the permittee's authorized 
agent. The Authority Having jurisdiction shall be per- 
mitted to require evidence to indicate such authority. 

(6) Give such other data and information in accordance with 
the Authority Having Jurisdiction. 

103.2.1 Plans and Specifications. Plans, engineering 
calculations, diagrams, and other data shall be submitted 
in one or more sets with each application for a permit. 
The Authority Having Jurisdiction shall be permitted to 
require plans, computations, and specifications to be pre- 
pared by, and the plumbing designed by, an engineer, an 
architect, or both who shall be licensed by the state to 
practice as such. 

Exception: The Authority Having Jurisdiction shall be 
permitted to waive the submission of plans, calculations, 
or other data where the Authority Having Jurisdiction 
finds that the nature of the work appl ied for is such that 
reviewing of plans is not necessary to obtain compliance 
within the code. 

103.2.2 Information on Plans and Specifications. 
Plans and specifications shall be drawn to scale upon 
substantial paper or cloth and shall indicate the location, 
nature, and extent of the work proposed and show in 
detail that it is in accordance with the provisions of this 
code and relevant laws, ordinances, rules, and regula- 
tions. 

103.3 Permit Issuance. The application, plans, and specifi- 
cations and other data filed by an applicant for a permit shall 
be reviewed by the Authority Having Jurisdiction. Such plans 
shall be permitted to be reviewed by other departments of 
this jurisdiction to verify compliance with applicable laws 
under their jurisdiction. Where the Authority Having Juris- 
diction finds that the work described in an appl ication for per- 



2013 CALIFORNIA PLUMBING CODE 



21 



DIVISION II ADMINISTRATION 



mil and the plans, specifications, and other data filed there- 
with are i n accordance with the requirements of the code and 
other pertinent laws and ordinances, and that the fees speci- 
fied in Section 103.4 have been paid, the Authority Having 
Jurisdiction shall issue a permit therefore to the applicant. 

Where the Authority Having Jurisdiction issues the per- 
mit where plans are required, the Authority Having Jurisdic- 
tion shall endorse in writing or stamp the plans and 
specifications "APPRO VED." Such approved plans and spec- 
ifications shall not be changed, modified, or altered without 
authorization from the Authority Having Jurisdiction, and the 
work shall be done in accordance with approved plans. 

The Authority Having Jurisdiction shall be permitted to 
issue a permit for the construction of a part of a plumbing sys- 
tem before the entire plans and specifications for the whole 
system have been submitted or approved, provided adequate 
information and detailed statements have been tiled in accor- 
dance with the pertinent requirements of this code. The holder 
of such permit shall be permitted to proceed at the holder's 
risk without assurance that the permit for the entire building, 
structure, or plumbing system will be granted. 

103.3.1 Retention of Plans. One set of approved plans, 
specifications, and computations shall be retained by the 
Authority Having Jurisdiction until final approval of the 
work covered therein. One set of approved plans and 
specifications shall be returned to the applicant, and said 
set shall be kept on the site of the building or work at 
times during which the work authorized thereby is in 
progress. 

103.3.2 Validity of Permit. The issuance of a permit or 
approval of plans and specifications shall not be con- 
strued to be a permit for, or an approval of a violation of 
the provisions of this code or other ordinance of the juris- 
diction. No permit presuming to give authority to violate 
or cancel the provisions of this code shall be valid. 

The issuance of a permit based upon plans, specifi- 
cations, or other data shall not prevent the Authority Hav- 
ing Jurisdiction from thereafter requiring the correction 
of errors in said plans, specifications, and other data or 
from preventing building operations being carried on 
thereunder where in violation of this code or of other 
ordinances of this jurisdiction. 

103.3.3 Expiration. A permit issued by the Authority 
Having Jurisdiction under the provisions of this code 
shall expire by limitation and become null and void 
where the work authorized by such permit is not com- 
menced within 180 days from the date of such permit, or 
where the work authorized by such permit is suspended 
or abandoned at a time after the work is commenced for 
a period of 1 80 days. Before such work is recommenced, 
a new permit shall first be obtained to do so, and the fee 
therefore shall be one-half the amount required for a new 
permit for such work, provided no changes have been 
made or will be made in the original plans and specifi- 
cations for such work, and provided further that such sus- 
pensions or abandonment has not exceeded 1 year. 



A permittee holding an unexpired permit shall be 
permitted to apply for an extension of the time within 
which work shall be permitted to commence under that 
permit where the permittee is unable to commence work 
within the time required by this section. The Authority i 
Having Jurisdiction shall be permitted to extend the time 
for action by the permittee for a period not exceeding 180 
days upon written request by the permittee showing that 
circumstances beyond the control of the permittee have 
prevented action from being taken. No permit shall be 
extended more than once. In order to renew action on a 
permit after expiration, the permittee shall pay a new full 
permit fee. 

1.03.3.4 Suspension or Revocation. The Authority Hav- 
ing Jurisdiction shall be permitted to, in writing, suspend 
or revoke a permit issued under the provisions of this 
code where the permit is issued in error or on the basis of 
incorrect information supplied or in violation of other 
ordinance or regulation of the jurisdiction. 

.103.4 Fees. Fees shall be assessed in accordance with the pro- 
visions of this section and as set forth in the fee schedule 
Table 103.4. The fees are to be determined and adopted by 
this jurisdiction. 

1.03.4.1 Plan Review Fees. Where a plan or other data is 
required to be submitted by Section 103.2.1, a plan 
review fee shall be paid at the time of submitting plans 
and specifications for review. 

The plan review fees for plumbing work shall be 
determined and adopted by this jurisdiction. 

The plan review fees specified in this subsection are 
separate fees from the permit fees specified in this sec- 
tion and are in addition to the permit fees. 

Where plans are incomplete or changed so as to 
require additional review, a fee shall be charged at the 
rate shown in Table 103.4. 

103.4.2 Expiration of Plan Review. Applications for 
which no permit is issued within 1 80 days following the 
date of application shall expire by limitation, plans and 
other data submitted for review thereafter, shall be 
returned to the applicant or destroyed by the Authority 
Having Jurisdiction. The Authority Having Jurisdiction 
shall be permitted to exceed the time for action by the 
applicant for a period not to exceed 180 days upon 
request by the applicant showing that circumstances 
beyond the control of the applicant have prevented action 
from being taken. No application shall be extended more 
than once. In order to renew action on an application 
after expiration, the applicant shall resubmit plans and 
pay a new plan review fee. 

103.4.3 Investigation Fees - Work Without a Permit. 
Where work for which a permit is required by this code 
has been commenced without first obtaining said permit, 
a special investigation shall be made before a permit shall 
be issued for such work. 



22 



2013 CALIFORNIA PLUMBING CODE 



DIVISION II ADMINISTRATION 



103.4.3.1 Fees. An investigation fee, in addition to 
the permit fee, shall be collected whether or not a 
permit is then or subsequently issued. The investi- 
gation fee shall be equal to the amount of the permit 
fee that is required by this code if a permit were to 
be issued. The payment of such investigation fee 
shall not exempt a person from compliance with 
other provisions of this code, nor from a penalty pre- 
scribed by law. 

103.4.4 Fee Refunds. The Authority Having Jurisdiction 
shall be permitted to authorize the refunding of a fee paid 
hereunder that was erroneously paid or collected. 

103.4.4.1 Percentage. The Authority Having Juris- 
diction shall be permitted to authorize the refunding 
of not more than a percentage, as determined by this 
jurisdiction where no work has been done under a 
permit issued in accordance with this code. 

103.4.4.2 In Writing. The Authority Having Juris- 
diction shall not authorize the refunding of a fee paid 
except upon written application filed by the original 
permittee not to exceed 180 days after the date of 
fee payment. 

103.5 Inspections. Plumbing systems for which a permit is 
required by this code shall be inspected by the Authority Hav- 
ing Jurisdiction. 

No portion of a plumbing system shall be concealed until 
inspected and approved. Neither the Authority Having Juris- 
diction nor the jurisdiction shall be liable for expense entailed 
in the removal or replacement of material required to permit 
inspection. Where the installation of a plumbing system is 
complete, an additional and final inspection shall be made. 
Plumbing systems regulated by this code shall not be con- 
nected to the water, the energy fuel supply, or the sewer sys- 
tem until authorized by the Authority Having Jurisdiction. 

103.5.1. Water Supply System. No water supply system 
or portion thereof shall be covered or concealed until it 
first has been tested, inspected, and approved. 

103.5.2 New Plumbing Work. New plumbing work and 
such portions of existing systems as affected by new 
work, or changes, shall be inspected by the Authority 
Having Jurisdiction to ensure compliance with the 
requirements of this code and to ensure that the installa- 
tion and construction of the plumbing system is in accor- 
dance with approved plans. 

103.5.3 Covering or Using. No plumbing or drainage 
system, building sewer, private sewer disposal system, 
or part thereof, shall be covered, concealed, or put into 
use until it has been tested, inspected, and accepted as 
prescribed in this code. 

1 03.5.4 Uncovering. Where a drainage or plumbing sys- 
tem, building sewer, private sewage disposal system, or 
part thereof, which is installed, altered, or repaired, is 
covered or concealed before being inspected, tested, and 
approved as prescribed in this code, it shall be uncovered 



for inspection after notice to uncover the work has been 
issued to the responsible person by the Authority Hav- 
ing Jurisdiction. 

103.5.5 Operation of Plumbing Equipment The 
requirements of this section shall not be considered to 
prohibit the operation of plumbing installed to replace 
existing equipment or fixtures serving an occupied por- 
tion of the building in the event a request for inspection 
of such equipment or fixture has been filed with the 
Authority Having Jurisdiction not more than 72 hours 
after such replacement work is completed, and before a 
portion of such plumbing system is concealed by a per- 
manent portion of the building. 

103.5.6 Testing of Systems. Plumbing systems shall be 
tested and approved in accordance with this code or the 
Authority Having Jurisdiction. 

103.5.6.1 Test. Tests shall be conducted in the pres- 
ence of the Authority Having Jurisdiction or the 
Authority Having jurisdiction's duly appointed rep- 
resentative. 

103.5.6.2 Test Waived. No test or inspection shall 
be required where a plumbing system, or part 
thereof, is set up for exhibition purposes and has no 
connection with a water or drainage system. 

103.5.6.3 Exceptions. In cases where it would be 
impractical to provide the required water or air tests, 
or for minor installations and repairs, the Authority 
Having Jurisdiction shall be permitted to make such 
inspection as deemed advisable in order to be 
assured that the work has been performed in accor- 
dance with the intent of th is code. 

103.5.6.4 Tightness. Joints and connections in the 
plumbing system shall be gastight and watertight for 
the pressures required by the test. 

103.5.7 Inspection Requests. It shall be the duty of the 
person doing the work authorized by a permit to notify 
the Authority Having Jurisdiction that such work is ready 
for inspection. The Authority Having Jurisdiction shall 
be permitted to require that a request for inspection be 
filed not less than 1 working day before such inspection 
is desired. Such request shall be in writing or by tele- 
phone, at the option of the Authority Having Jurisdiction. 

It shall be the duty of the person requesting inspec- 
tions in accordance with this code to provide access to 
and means for inspection of such work. 

103.5.7.1 Advance Notice. It shall be the duty of the 
person doing the work authorized by the permit to 
notify the Authority Having jurisdiction, orally or 
in writing, that said work is ready for inspection. 
Such notification shall be given not less than 24 
hours before the work is to be inspected. 

103.5.7.2 Responsibility. I t shall be the duty of the 
holder of a permit to make sure that the work will 
stand the test prescribed before giving the notifica- 
tion. 



2013 CALIFORNIA PLUMBING CODE 



23 



DIVISION SI ADMINISTRATION 



The equipment, material, and labor necessary 
for inspection or tests shall be furnished by the per- 
son to whom the permit is issued or by whom 
inspection is requested. 

103.5.8 Other Inspections. In addition to the inspections 
required by this code, the Authority Having Jurisdiction 
shall be permitted to require other inspections of plumb- 
ing work to ascertain compliance with the provisions of 
this code and other laws that are enforced by the Author- 
ity Having Jurisdiction. 

103.5.8.1 Defective Systems. An air test shall be 
used in testing the sanitary condition of the drainage 
or plumbing system of building premises where 
there is reason to believe that it has become defec- 
tive. In buildings or premises condemned by the 
Authority Having Jurisdiction because of an insan- 
itary condition of the plumbing system, or part 
thereof, the alterations in such system shall be in 
accordance with the requirements of this code. 

103.5.8.2 Moved Structures. Parts of the plumbing 
systems of a building or part thereof that is moved 
from one foundation to another, or from one loca- 
tion to another, shall be completely tested as pre- 
scribed elsewhere in this section for new work, 
except that walls or floors need not be removed dur- 
ing such test where other equivalent means of 
inspection acceptable to the Authority Having Juris- 
diction are provided. 

103.5.9 Reinspections. A reinspection fee shall be per- 
mitted to be assessed for each inspection or reinspection 
where such portion of work for which inspection is called 
is not complete or where required corrections have not 
been made. 

This provision is not to be interpreted as requiring 
reinspection fees the first time a job is rejected for fail- 
ure to be in accordance with the requirements of this 
code, but as controlling the practice of calling for inspec- 
tions before the job is ready for inspection or reinspec- 
tion. 

Reinspection fees shall be permitted to be assessed 
where the approved plans are not readily available to the 
inspector, for failure to provide access on the date for 
which the inspection is requested, or for deviating from 
plans requiring the approval of the Authority Having 
Jurisdiction. 

To obtain reinspection, the applicant shall file an 
application therefore in writing upon a form furnished 
for that purpose and pay the reinspection fee in accor- 
dance with Table 1 .03.4. 

In instances where reinspection fees have been 
assessed, no additional inspection of the work will be 
performed until the required fees have been paid. 

103.5.9.1 Corrections. Notices of correction or vio- 
lation shall be written by the Authority Having Juris- 
diction and shall be permitted to be posted at the site 



of the work or mailed or delivered to the permittee 
or his authorized representative. 

Refusal, failure, or neglect to comply with such 
notice or order within 10 days of receipt thereof, 
shall be considered a violation of this code and shall 
be subject to the penalties set forth elsewhere in this 
code for violations. 

103.5.9.2 Retesting. Where the Authority Having 
J urisdiction finds that the work will not pass the test, 
necessary corrections shall be made, and the work 
shall be resubmitted for test or inspection. 

103.5.9.3 Approval. Upon the satisfactory comple- 
tion and final test of the plumbing system, a certifi- 
cate of approval shall be issued by the Authority 
Having Jurisdiction to the permittee on demand. 

1.03.6 Connection Approval. No person shall make connec- 
tions from a source of energy or fuel to a plumbing system or 
equipment regulated by this code and for which a permit is 
required until approved by the Authority Having Jurisdiction. 

103.6.1 Other Connections. No person shall make con- 
nection from a water-supply line nor shall connect to a 
sewer system regulated by this code and for which a per- 
mit is required until approved by the Authority Having 
Jurisdiction. 

103.6.2 Temporary Connections. The Authority Hav- 
ing Jurisdiction shall be permitted to authorize tempo- 
rary connection of the plumbing equipment to the source 
of energy or fuel for the purpose of testing the equipment. 

103.7 Unconstitutional. Where a section, subsection, sen- 
tence, clause, or phrase of this code is, for a reason, held to be 
unconstitutional, such decision shall not affect the validity of 
the remaining portions of this code. The legislative body 
hereby declares that it would have passed this code, and each 
section, subsection, sentence, clause, or phrase thereof, irre- 
spective of the fact that one or more sections, subsections, 
sentences, clauses, and phrases are declared unconstitutionaL 

103.8 Validity. Where a provision of this code, or the appl i- 
cation thereof to a person or circumstance, is held invalid, the 
remainder of the code, or the application of such provi sion to 
other persons or circumstances, shall not be affected thereby. 



24 



2013 CALIFORNIA PLUMBING CODE 



TABLE 103.4 
PLUMBING PERMIT FEES 

Permit Issuance 

1 . For issuing each permit 

2. For issuing each supplemental permit 

Unit Fee Schedule (in addition to Items 1 and 2 above) 

1 . For each plumbing fixture on one trap or a set of fixtures on one trap (including water, 
drainage piping, and backflow protection therefore) 

2. For each building sewer and each trailer park sewer 

3. Rainwater systems - per drain (inside building) 

4. For each cesspool (where permitted) 

5. For each private sewage disposal system 

6. For each water heater, vent, or both 

7. For each gas piping system of one to five outlets 

8. For each additional gas piping system outlet, per outlet 

9. For each industrial waste pretreatment interceptor, including its trap and vent, 

except kitchen-type grease interceptors functioning as fixture traps 

1 0. For each installation, alteration, or repair of water piping, water treating equipment, or both , 

1 1 . For each repair or alteration of drainage or vent piping, each fixture 

12. For each lawn sprinkler system on one meter including backflow protection devices therefore ... 

13. For atmospheric-type vacuum breakers not referenced in Item 1 2: 

One to 5 

over 5, each , 

14. For each backflow protective device other than atmospheric-type vacuum breakers: 

Two inch (50 mm) diameter and smaller 

over 2 inch (50 mm) diameter 

1 5 . For each gray water system 

16. For initial installation and testing for a reclaimed water system 

17. For each annual cross-connection testing of a reclaimed water system (excluding initial test) 

18. For each medical gas piping system serving one to five inlet(s)/outlet(s) for a specific gas 

19. For each additional medical gas inlet(s)/outlet(s) 

Other Inspections and Fees 

1 . Inspections outside of normal business hours 

2. Re inspection fee 

3. Inspections for which no fee is specifically indicated 

4. Additional plan review required by changes, additions, or 

revisions to approved plans (minimum charge - Vi hour) 

For SI units: 1. inch = 25 mm 

* Jurisdiction will indicate their fees here. 



2013 CALIFORNIA PLUMBING CODE 



2013 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE. MATRIX ADOPTION TABLE 
CHAPTER 2 - DEFINITIONS 

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 

HCD DSA OSHPD 

1 2 1-AC AC ! SS SS/CC 1 2 3 

! ; x ! x 



j Adopting Agency 
Adopt Entire Chapter 



BSC i SFM 

; i j 

X 



BSCC DPH AGR DWR CA j SL SLC 



Adopt Entire Chapter as amended 
| (amended sections listed below) 



Adopt only those sections that are 
listed below 

: Chapter/Section 



I 



X : X 



203.0 




| X 


X 




204.0 






X 




205.0 


: X ; 


X 




X 


206.0 


! x I 


! x 


x : 


X 


207.0 


X 


"x' 


x 


X 


208.0 










209.0 


1 x ; 

1 j 


! x 






210.0 










21 1.0 


; X j 


! x 






214.0 




: x 


X 




215.0 


\ X 


i x 






216.0 




X 


X ; 




217.0 


: x ! 


X 






220.0 


! X 1 


; X 







221.0 


: X ; 


1 X 







222.0 


X 


; X 


x 




223.0 




: x 


X 




225.0 




X 


X 





X X X X 



X 

X 



X ! X I X : X 



X 
X 



X 



2013 CALIFORNIA PLUMBING CODE 



27 



2013 CALIFORNIA PLUMBING CODE 



CHAPTER 2 

DEFINITIONS 



201.0 General. 

201.1 Applicability. For the purpose of this code, the fol- 
lowing terms have the meanings indicated in this chapter. 

No attempt is made to define ordinary words, which are 
used in accordance with their established dictionary mean- 
ings, except where a word has been used loosely and it is nec- 
essary to define its meaning as used in this code to avoid 
misunderstanding. 

202.0 Definition of Terms. 

202.1 General. The definitions of terms are arranged alpha- 
betically according to the first word of the term. 

203.0 -A- 

ABS. Acrylonitrile-butadieiie-styrene. 

Accessible. Where applied to a fixture, connection, appliance, 
or equipment, "accessible" means having access thereto, but 
which first may require the removal of an access panel, door, 
S or similar obstruction. 

Accessible, Readily. Having a direct access without the 
necessity of removing a panel, door, or similar obstruction. 

Air Break. A physical separation which may be a low inlet 
into the indirect waste receptor from the fixture, appliance, 
or device indirectly connected. 

Air Gap, Drainage. The unobstructed vertical distance 
through the free atmosphere between the lowest opening from 
a pipe, plumbing fixture, appliance, or appurtenance convey- 
ing waste to the flood-level rim of the receptor. 

Air Gap, Water Distribution. The unobstructed vertical dis- 
tance through the tree atmosphere between the lowest open- 
ing from a pipe or faucet conveying potable water to the 
flood-level rim of a tank, vat, or fixture. 

Alternate Water Source. Nonpotable source of water that 
includes but not limited to gray water, on-site treated non- 
potable water, rainwater, and reclaimed (recycled) water. 

Anchors. See Supports. 

[ Appliance Categorized Vent Diameter/Area. The minimum 
vent area/diameter permissible for Category I appliances to 
maintain a nonpositive vent static pressure where tested in 
accordance with nationally recognized standards. [NFPA 
54:3.3.7] 

1 Appliance Fuel Connector. An assembly of listed semi-rigid 
or flexible tubing and fittings to cany fuel between a fuel- 
piping outlet and a fuel-burning appliance. 

Approved. Acceptable to the Authority Having Jurisdiction. 

Exception: [HCD I & HCD 2] "Approved" means meeting 
the approval of the Enforcing Agency, except as otherwise 
provided by law, when used in connection with any system, 
material, type of construction, fixture or appliance as the 
result of investigations and tests conducted by the agency, or 



by reason of accepted principles or tests by national author- 
ities, or technical, health, or scientific organizations or agen- 
cies. 

Notes: 

1. See Health and Safety Code Section J 7920 for 
'Approved" as applied to residential construction and 
buildings or structures accessory thereto as referenced 
in Section 1.8.2. 

2. See Health and Safety Code Section 17921.1 for 
'Approved" as applied to the use of the hotplates in res- 
idential construction as referenced in Section 1.8.2. 

3. See Health and Safety Code 19966 for "Approved" as 
applied to Factory-Built Housing as referenced in Sec- 
tion 1.8.3.2.5. 

4. See Health and Safety Code Section 18201 for 
'Approved" as applied to Mobil ehome Parks as refer- 
enced in Section 1.8.2. 

5. See Health and Safety Code Section 18862.1 for 
'Approved" as applied to Special Occupancy Parks as 
referenced in Section 1 .8.2. 

Approved Testing Agency. An organization primarily estab- 
lished for purposes of testing to approved standards and 
approved by the Authority Having Jurisdiction. 

[HCD 1 & BCD 2 1 "Approved Testing Agency" is any 
agency which is determined by the enforcing agency, except 
as otherwise provided by statute, to have adequate personnel 
and expertise to carry out the testing of systems, materials, 
and construction f ixtures or appliances. 

Area Drain. A receptor designed to collect surface or storm 
water from an open area. 

Aspirator. A fitting or device supplied with water or other 
fluid under positive pressure that passes through an integral 
orifice or constriction, causing a vacuum. 

Authority Having Jurisdiction. The organization, office, or 
individual responsible for enforcing the requirements of a code 
or standard, or for approving equipment, materials, installa- 
tions, or procedures. The Authority Having Jurisdiction shall be 
a federal, state, local, or other regional department or an indi- 
vidual such as a plumbing official, mechanical official, labor 
department official, health department official, building offi- 
cial, or others having statutory authority, in the absence of a 
statutory authority, the Authority Having Jurisdiction may be 
some other responsible party. This definition shall include the 
Authority Having Jurisdiction's duly authorized representative. 

[HCD 1 & HCD 2] "Authority Having Jurisdiction " shall 
mean "Enforcing Agency " as defined in Section 207.0 of this 
code. 

204.0 - B - 

Backflow. The flow of water or other liquids, mixtures, or 
substances into the distributing pipes of a potable supply of 



2013 CALIFORNIA PLUMBING CODE 



29 



DEFINITIONS 



water from sources other than its intended source. See Back- 
siphon age, Backpressure Backflow. 

Backflow Connection. An arrangement whereby backflow 
can occur. 

Backflow Preventer. A backflow prevention device, an 
assembly, or other method to prevent backflow into the 
potable water system. 

Backpressure Backflow. Backflow due to an increased pres- 
sure above the supply pressure, which may be due to pumps, 
boilers, gravity, or other sources of pressure. 

Backsiphonage. The flowing back of used, contaminated, or 
polluted water from a plumbing fixture or vessel into a water 
supply pipe due to a pressure less than atmospheric in such 
pipe. See Backflow. 

Backwater Valve. A device installed in a drainage system to 
prevent reverse How. 

Bathroom Group. A group of fixtures consisting of a water 
closet, one or two lavatories, and either a bathtub, a combi- 
nation bath/shower, or a shower and may include a urinal or 
bidet and an emergency floor drain. 

Bathroom, Half. A room equipped with only a water closet 
and lavatory. 

Battery of Fixtures. A group of two or more similar, adja- 
cent fixtures that discharge into a common horizontal waste 
or soil branch. 

Boiler Blowoff. An outlet on a boiler to permit emptying or 
discharge of sediment. 

I Bonding Jumper. A reliable conductor to ensure the required 
electrical conductivity betw ; een metal parts required to be 
electrically connected. [NFPA 70: 1 00. 1] 

Branch. A part of the pipi ng system other than a mai n, riser, 
or stack. 

Branch, Fixture. See Fixture Branch. 

Branch, Horizontal. See Horizontal Branch. 

Branch Vent. A vent connecting one or more individual vents 
with a vent stack or stack vent. 

Building. A structure built, erected, and framed of compo- 
nent structural parts designed for the housing, shelter, enclo- 
sure, or support of persons, animals, or property of any kind. 

Exceptions: fHCD 1 & HCD 2/ "BUILDING" shall not 
in cl.it d e th e folio w ing: 

1. Any mobilehome as defined in Health and Safety Code 
Section 18008. 

2. Any manufactured home as defined in Health and Safety 
Code Section 18007. 

3. Any commercial modular as defined in Health and Safety 
Code Section 1 800 /. 8 or any special purpose commer- 
cial modular as defined in Section 18012.5. 

4. Any recreational vehicle as defined in Section Health and 
Safety Code 18010. 

5. Any mult [family manufactured home as defined in Health 
and Safety Code Section 1 8008. 7. 



For additional information, see Health and Safety Code Sec- 
tion 18908. 

Building Drain. That part of the lowest piping of a drainage 
system that recei ves the discharge from soil , waste, and other 
drainage pipes inside the walls of the building and conveys it 
to the building sewer beginning 2 feet (61 mm) outside the 
building wall. 

Building Drain (Sanitary). A building drain that conveys 
sewage only. 

Building Drain (Storm). A bui lding drain that conveys storm 
water or other drainage, but no sewage. 

Building Sewer. That part of the horizontal piping of a 
drainage system that extends from the end of the building 
drain and that receives the discharge of the building drain and 
conveys it to a public sewer, private sewer, private sewage 
disposal system, or other point of disposal . 

Building Sewer (Combined). A building sewer that conveys 
both sewage and storm water or other drainage. 

Building Sewer (Sanitary). A building sewer that conveys 
sewage only. 

Building Sewer (Storm). A building sewer that conveys 
storm water or other drainage, but no sewage. 

Building Subdrain. That portion of a drainage system that 
does not drain by gravity into the building sewer. 

Building Supply. The pipe carrying potable water from the 
water meter or other source of water supply to a building or 
other point of use or distribution on the lot. 1 

205.0 - C - 

Certified Backflow Assembly Tester. A person who has 
shown competence to test and maintain backflow assemblies 
to the satisfaction of the Authority Having Jurisdiction. 

Cesspool. A lined excavation in the ground that receives the 
discharge of a drainage system or part thereof, so designed as 
to retain the organic matter and solids discharging therein, but 
permitting the liquids to seep through the bottom and sides. 

Chemical Waste. See Special Wastes. 

Chimney. A vertical shaft enclosing one or more flues for I 
conveying Hue gases to the outside atmosphere. 1 

Chimney, Factory-Built. A chimney composed of listed fac- 
tory-built components assembled in accordance with the 
terms of listing to form the completed chimney. [NFPA 
54:3.3.18.2] 

Chimney, Masonry. A field-constructed chimney of solid 1 
masonry units, bricks, stones, listed masonry chimney units, 
or reinforced portland cement concrete, lined with suitable 
chimney flue liners. [NFPA 54:3.3. 1 8.3] 

Chimney, Metal. A chimney constructed of metal with a min- 
imum thickness not less than 0.127 inch (3.23 mm) (No. 10 
manufacturer's standard gauge) steel sheet. 

Clarifier. See Interceptor. 

Clear Water Waste. Cooling water and condensate drainage 
from refrigeration and air-conditioning equipment; cooled 
condensate from steam heating systems; and cooled boiler 
blow down water. 



30 



2013 CALIFORNIA PLUMBING CODE 



DEFINITIONS 



Clinic Sink. A sink designed primarily to receive wastes from 
bedpans and having a flush rim, an integral trap with a visi- 
ble trap seal, and the same flushing and cleansing character- 
istics as a water closet. 

Clothes Washer System [HCD //. A gray water system uti- 
lizing only a single domestic clothes washing machine in a 
one- or two family dwelling. 

Code. A standard that is an extensive compilation of provi- 
sions covering broad subject matter or that is suitable for 
adoption into law independently of other codes and standards. 

Combination Thermostatic/Pressure Balancing Valve. A 
mixing valve that senses outlet temperature and incoming hot 
and cold water pressure and compensates for fluctuations in 
incoming hot and cold water temperatures, pressures, or both 
to stabilize outlet temperatures. 

Combination Waste and Vent System. A specially designed 
system of waste piping embodying the horizontal wet venting 
of one or more sinks or floor drains by means of a common 
waste and vent pipe, adequately sized to provide free move- 
ment of air above the flow line of the drain. 

Combined Building Sewer. See Building Sewer (Com- 
bined). 

S Combustible Materia). As pertaining to materials adjacent to 
or in contact with heat-producing appliances, vent connec- 
tors, gas vents, chimneys, steam and hot water pipes, and 
warm air ducts, materials made of or surfaced with wood, 
compressed paper, plant fibers, or other materials that are 
capable of being ignited and burned. Such material shall be 
considered combustible even though flame-proofed, fire- 
retardant treated, or plastered. [N'FPA 54:3.3.67.1] 

Commissaries Serving Mobile Food Preparation Units 
[DHSj. A food establishment in which food, containers, equip- 
ment or supplies are stored or handled for use in vehicles, 
mobile food preparation units, food carts or vending 
machines. 

Common. That part of a plumbing system that is so designed 
and installed as to serve more than one appliance, fixture, 
building, or system. 

II Complex System [ESC, HCD //. Gray water systems that 
I discharge over 250 gallons (947 L) per day 

Conductor. A pipe inside the building that conveys storm 
water from the roof to a storm drain, combined building 
sewer, or other approved point of disposal . 

Confined Space. A room or space having a volume less than 
50 cubic feet per 1000 British thermal units per hour (Btu/h) 
(4.83 mVkW) of the aggregate input rating of all fuel-burning 
appliances installed in that space. 

Contamination. An impairment of the quality of the potable 
water that creates an actual hazard to the public health 
through poisoning or through the spread of disease by 
sewage, industrial fluids, or waste. Also defined as High Haz- 
ard. 

Continuous Vent. A vertical vent that is a continuation of the 
drain to which it connects. 

Continuous Waste. A drain connecting the compartments of 
a set of fixtures to a trap or connecting other permitted fix- 
tures to a common trap. 



Covered Miiltifamily Dwellings [HCD 1-ACf. See Section 
1.8.2.1.2. 

CPVC. Chlorinated Poly (Vinyl Chloride). 
Critical Care Area. Those special care units, intensive care | 
units, coronary care units, angiography laboratories, cardiac 
catheterization laboratories, delivery rooms, operating rooms, 
post anesthesia recovery rooms, emergency departments, and 
similar areas in which patients are intended to be subjected to 
invasive procedures and connected to line-operated, patient- 
care-related electrical appliances. [NFPA 99:3.3. 1 38. 1] 

Critical Level. The critical level (C-L or C/L) marking on a 
backflow prevention device or vacuum breaker is a point con- 
forming to approved standards and established by the testing 
laboratory (usually stamped on the device by the manufac- 
turer) that determines the minimum elevation above the flood- 
level rim of the fixture or receptor served at which the device 
may be installed. Where a backflow prevention device does 
not bear a critical level marking, the bottom of the vacuum 
breaker, combination valve, or the bottom of such approved 
device shall constitute the critical level. 

Cross-Connection. A connection or arrangement, physical 
or otherwise, between a potable water supply system and a 
plumbing fixture or a tank, receptor, equipment, or device, 
through which it may be possible for nonpotable, used, 
unclean, polluted, and contaminated water, or other sub- 
stances to enter into a part of such potable water system under 
any condition. 

206.0 - D - 

Debris Excluder. A device installed on the rainwater catch- 
ment conveyance system to prevent the accumulation of 
leaves, needles, or other debris in the system. 

Department [HCD 1, HCD 2 and BCD 1-ACj. "Department" 
means the Department of Housing and Community Develop- 
ment 

Department Having Jurisdiction. The Authority Having 
Jurisdiction, including any other law enforcement agency 
affected by a provision of this code, whether such agency is 
specifically named or not. 

[HCD 1 & HCD 2] "Department Ha \ ing Jurisdiction " shall 
mean "Enforcing Agency " as defined in Section 207.0 of this 
code. 

Design Flood Elevation. The elevation of the "design flood," 
including wave height, relative to the datum specified on the 
community's legally designated flood hazard map. In areas 
designated as Zone AO, the design flood elevation is the ele- 
vation of the highest existing grade of the building's perime- 
ter plus the depth number (in feet) specified on the flood 
hazard map. In areas designated as Zone AO where a depth 
number is not specified on the map, the depth number is taken 
as being equal to 2 feet (610 mm). 

Developed Length. The length along the center line of a pipe 
and fittings. 

Diameter. Unless specifically stated, "diameter" is the nom- 
inal diameter as designated commercially. 



2013 CALIFORNIA PLUMBING CODE 



31 



DEFINITIONS 



I Direct-Vent Appliances. Appliances that are constructed and 
installed so that air for combustion is derived directly from 

I the outdoors and flue gases are discharged to the outdoors. 
[NF.PA 54:3.3.6.3] 

Disposal Field [BSC A HCD //. An intended destination for 
gray water including but not limited to, a mulch basin or 
receiving landscape feature, gray water leach field, or other 
approved method of disposal 

Domestic Sewage. The liquid and water-borne wastes 
derived from the ordinary living processes, free from indus- 
trial wastes, and of such character as to permit satisfactory 
disposal, without special treatment, into the public sewer or 
by means of a private sewage disposal system. 

Downspout. The rain leader from the roof to the building 
storm drain, combined building sewer, or other means of dis- 
posal located outside of the building. See Conductor and 
Leader. 

Drain. A pipe that carries waste or waterborne wastes in a 
building drainage system. 

Drainage System. Includes all the piping within public or 
private premises that conveys sewage or other liquid wastes 
to a legal point of disposal, but does not include the mains of 
a public sewer system or a public sewage treatment or dis- 
posal plant. 

Durham System. A soil or waste system in which all piping is 
threaded pipe, tubing, or other such rigid construction, using 
recessed drainage fittings to correspond to the types of piping. 

207.0 - E - 

Effective Ground-Fault Current Path. An intentionally con- 
structed, low-impedance electrically conductive path designed 
and intended to carry current under ground-fault conditions 
from the point of a ground fault on a wiring system to the elec- 
trical supply source and that facilitates the operation of the 
overcurrent protective device or ground-fault detectors on 
high-impedance grounded systems. [NFPA 54-12:3.3.36] 

Effective Opening. The minimum cross-sectional area at the 
point of water supply discharge measured or expressed in 
terms of: (1) diameter of a circle or (2) where the opening is 
not circular, the diameter of a circle of equivalent cross-sec- 
tional area. (This is applicable also to air gap.) 

II Enforcing Agency [BSC, HCD /, HCD 2, and HCD 1-ACJ. 
"Enforcing Agency " is the designated department or agency 
as specified by statute or regulation. 

Essentially Nontoxic Transfer Fluid. Essentially nontoxic 
at practically nontoxic, Toxicity Rating Class 1 (reference 
"Clinical Toxicology of Commercial Products" by Gosselin, 
Smith, Hodge, & Braddock). 

Excess Flow Valve (EFV). A valve designed to activate 
where the fuel gas passing through it exceeds a prescribed 
flow rate. [NFPA 54:3.3.105.3] 

Existing Work. A plumbing system or any part thereof that 
has been installed prior to the effective date of this code. 



208.0 -F- 

F Rating. The time period that the penetration firestop system | 
limits the spread of fire through the penetration, where tested 
in accordance with ASTM £ 814 or UL 1479. 

Fixture Branch. A water supply pipe between the fixture 
supply pipe and the water distribution pipe. I 

Fixture Drain. The drain from the trap of a fixture to the 
junction of that drain with any other drain pipe. 

Fixture Supply. A water supply pipe connecting the fixture 
with the fixture branch. 

Fixture Unit. A quantity in terms of which the load-producing 
effects on the plumbing system of different kinds of plumbing 
fixtures are expressed on some arbitrarily chosen scale. 

Flammable Vapor or Fumes. The concentration of flamma- 
ble constituents in air that exceeds 25 percent of its lower 
flammab.ili.ty limit (LFL). 

Flood Hazard Area. The greater of the fol lowing two areas: 

(1) The area within a floodplain subject to a 1 percent or 
greater chance of flooding in any given year. 

(2) The area designated as a flood hazard area on a commu- 
nity's flood hazard map, or otherwise legally designated. 

Flood Hazard Area Subject to High-Velocity Wave Action. 
Area within the flood hazard area that is subject to high veloc- 
ity wave action, and shown on a Flood Insurance Rate Map or 
other flood hazard map as Zone V, VO, VE or VI -30. 

Flood Level. See Flooded. 

Flood-Level Mini. The top edge of a receptor from which 
water overflows. 

Flooded. A fixture is flooded where the liquid therein rises 
to the flood-level rim. 

Flue Collar. That portion of an appliance designed for the | 
attachment of a draft hood, vent connector, or venting sys- 
tem. [NFPA 54:3.3.46] 

Flush Tank. A tank located above or integral with water clos- 
ets, urinal s, or similar fixtures for the purpose of flushing the 
usable portion of the fixture. 

Flush Valve. A val ve located at the bottom of a tank for the 
purpose of flushing water closets and similar fixtures. 

Fiushometer Tank. A tank integrated withi n an air accumu- 
lator vessel that is designed to discharge a predetermined 
quantity of water to fixtures for flushing purposes. 
Fiushometer Valve. A val ve that discharges a predetermined 
quantity of water to fixtures for flush ing purposes and is actu- 
ated by direct water pressure. 

FOG Disposal System. A grease interceptor that reduces 
nonpetroleum fats, oils, and grease (FOG) in effluent by sep- 
aration, mass, and volume reduction. 

Food Establishment [DPH], Any room, building, place or 
portion thereof, maintained, used or operated for purpose of 
storing, preparing, serving, packaging, transporting, sal- 
vaging or otherwise handling food at the retail level. 

Fuel Gas. Natural, manufactured, liquefied petroleum, or a | 
mixture of these. 



32 



2013 CALIFORNIA PLUMBING CODE 



DEFINITIONS 



| Fuel Gas Quick-Disconnect. A hand-operated device that 
provides a means for connecting and disconnecting an appli- 
ance or an appliance connector to a gas supply and that is 
equi pped with an automatic means to shut off the gas supply 
where the device is disconnected. [NFPA 54:3.3.29.3] 

1 Fuel Gas Vent. A listed factory-made vent pipe and vent fit- 
[ tings for conveying flue gases to the outdoors. 

Fuel Gas Venting System. A continuous open passageway 
from the Hue collar or draft hood of an appliance to the out- 
doors for the purpose of removing flue or vent gases. [NFPA 
54:3.3.100.7] 

209.0 -Ci- 
Can g or Group Shower. Two or more showers in a common 
area. 

1 Gas Piping. An instal lation of pipe, valves, or fittings that is 
used to convey fuel gas, installed on a premises or in a build- 
ing, but shall not include: 

(1 ) A portion of the service piping. 

(2) An approved piping connection 6 feet (1 829 mm) or less 
in length between an existing gas outlet and a gas appli- 
ance in the same room with the outlet. 

S Gas Piping System. An arrangement of gas piping or regu- 
lators after the point of deli very and each arrangement of gas 
piping serving a building, structure, or premises, whether 
individually metered or not. 

1 Genera! Care Areas. General care areas are patient bed- 
rooms, examining rooms, treatment rooms, clinics, and sim- 
ilar areas in which it is intended that the patient will come in 
contact with ordinary appliances such as a nurses-call sys- 
tem, electric beds, examining lamps, telephones, and enter- 
tainment devices. [NFPA 99:3.3.138.2] 

Grade. The slope or fall of a line of pipe in reference to a 
horizontal plane. In drainage, it is usually expressed as the 
fall in a fraction of an inch (mm) or percentage slope per foot 
(meter) length of pipe. 

Gravity Grease Interceptor. A plumbing appurtenance or 
appliance that is installed in a sanitary drainage system to 
intercept nonpetroleum fats, oils, and greases (FOG) from a 
wastewater discharge and is identified by volume, 30 minute 
retention time, baffle(s), not less than two compartments, a 
total volume of not less than 300 gallons (1135 L), and grav- 
ity separation. [These interceptors comply with the require- 
ments of Chapter 10 or are designed by a registered 
professional engineer.] Gravity grease interceptors are gen- 

>erally installed outside. 
Graywater [BSC & HCD If Pursuant to Health and Safety 
Code Section 1 7922. 12, "graywater" means untreated waste- 
water that has not been contaminated by any toilet discharge, 
has not been affected by infectious, contaminated, or 
unhealthy bodily wastes, and does not. present a threat from 
contamination by un healthful processing, manufacturing, or 
operating wastes. "Graywater" includes, but is not limited to, 
wastewater from bathtubs, showers, bathroom washbasins, 
clothes washing machines, and laundry tubs, but does not 
include wastewater from kitchen sinks or dishwashers. 



Note: For the purpose of applying the standards contained 
in this code, "Graywater" as defined above, has the same 
meaning as "gray water", "grey water", and "grey water". 

Gray Water System [ESC], A system designed to collect gray 
water to be treated on-site for reuse or distribution to an irri- 
gation or disposal field. A gray water system may include, 
on-site treated nonpotable water devices or equipment, tanks, 
valves, filters, pumps or other appurtenances along with pip- 
ing and receiving landscape. 

Gray Water System [HCD //. A system designed to collect 
gray water on-site for reuse or distribution to an irrigation or 
disposal field. A gray water system may include, on-site 
treated nonpotable water devices or equipment, tanks, valves, 
filters, pumps or other appurtenances along with piping and 
receiving landscape. 

Grease Interceptor. A plumbing appurtenance or appliance that 
is installed in a sanitary drainage system to intercept nonpetro- 
leum fats, oil, and greases (FOG) from a wastewater discharge. 

Grease Removal Device (GRD). Ahydromechanical grease 
interceptor that automatically, mechanically removes non- 
petroleum fats, oils and grease (FOG) from the interceptor, 
the control of which are either automatic or manually initi- 
ated. 

Grounding Electrode. A device that establishes an electri- 1 
cal connection to the earth. 

210.0 - H - 

Handwashing Fixture [OSHPD 1, 2, 3 & 4J. Handwash fix- 
tures consist of faucet, trim and sink as described: 

(1) Faucets and Trim 

a. Hand washing fixtures used by medical and nursing 
staff patients, and food handlers shall be trimmed with 
valves that can be operated without the use of hands. 

i. Wrist or elbow blades shall be permitted where 
allowed per Table 4-2. 

ii. Blade handles used for th is purpose shall be at 
least 4 inches (102 mm) in length. 

b. Sensor operated fixtures shall be capable of func- 
tioning during loss of normal power 

c. Faucets shall not be equipped with an aerator but 
may be equipped with a non-aerating laminar flow 
device. 

d. If deck-mounted manual temperature controls are 
used they shall use wrist blades at least 4 inches 
(102 mm) in length. 

e. Faucets shall be equipped with gooseneck spouts. A 
gooseneck spout is a deck or fixture-mounted spout 
so the discharge point of the spout return is at least 
5 inches (127 mm) above the fixture rim. 

(2) S i n ks 

a. Sinks in hand -washing fixtures shall be designed and 
installed to prevent splashing outside of the sink. 

b. Sinks shall have well fitted and sealed basins to pre- 
vent water leaks onto or into the cabinetry or wall 
spaces. 



2013 CALIFORNIA PLUMBING CODE 



33 



DEFINITIONS 



Ic. Design of sinks and cabinetry shall not permit stor- 
age beneath the sink basin. 
Hangers. See Supports. 

1 Heat-Fusion Weld Joints. A joint used in some thermoplas- 
tic systems to connect pipe to fittings or pipe lengths directly 
to one another (butt-fusion). This method of joining pipe to 
fittings includes socket-fusion, electro-fusion, and saddle- 
fusion. This method of welding involves the application of 
heat and pressure to the components, allowing them to fuse 
together forming a bond between the pipe and fitting. 

High Hazard. See Contamination. 

Horizontal Branch. A drain pipe extending laterally from a 
soil or waste stack or building drain with or without vertical 
sections or branches, which receives the discharge from one 
or more fixture drains and conducts it to the soil or waste 
stack or to the building drain. 

Horizontal Pipe. A pipe or fitting that is installed in a hori- 
zontal position or which makes an angle of less than 45 
degrees (0.79 rad) with the horizontal. 

Hot Water. Water at a temperature exceeding or equal to 
120°F(49°C), 

House Drain. See Building Drain. 
House Sewer. See Building Sewer. 

Hydromechanical Grease Interceptor. A plumbing appur- 
tenance or appliance that is installed in a sanitary drainage 
system to intercept n on petroleum fats, oil, and grease (FOG) 
from a wastewater discharge and is identified by flow rate, 
and separation and retention efficiency. The design incorpo- 
rates air entrainment, .hydromechanical separation, interior 
baffling, or barriers in combination or separately, and one of 
the following: 

A - External flow control, with air intake (vent), directly con- 
nected. 

B - External flow control, without air intake (vent), directly 
connected. 

C - Without external flow control, directly connected. 

D - Without external flow control, indirectly connected. 

These interceptors comply with the requirements of Table 
1014.2. 1 . Hydromechanical grease interceptors are generally 
instal led inside. 

211.0 -I- 

S Indirect-Fired Water Heater. A water heater consisting of a 
storage tank equipped with an internal or external heat 
exchanger used to transfer heat from an external source to 
heat potable water. The storage tank either contains heated 
potable water or water supplied from an external source, such 
as a boiler. 

Indirect Waste Pipe. A pipe that does not connect directly 
with the drainage system but conveys liquid wastes by dis- 
charging into a plumbing fixture, interceptor, or receptacle 
that is directly connected to the drainage system. 

Individual Vent. A pipe installed to vent a fixture trap and 
that connects with the vent system above the fixture served or 
terminates in the open air. 



Industrial Waste. Liquid or water-borne waste from indus- 
trial or commercial processes, except domestic sewage. 

Insanitary. A condition that is contrary to sanitary principles 
or is injurious to health. 

Conditions to which "insanitary" shall apply include the 
following: 

(1) A trap that does not maintain a proper trap seal. 

(2) An opening in a drainage system, except where lawful, 
that is not provided with an approved liquid-sealed trap. 

(3) A plumbing fixture or other waste discharging receptor 
or device that is not supplied with water sufficient to 
flush and maintain the fixture or receptor in a clean con- 
dition. 

(4) A defective fixture, trap, pipe, or fitting. 

(5) A trap, except where in this code exempted, directly con- 
nected to a drainage system, the seal of which is not pro- 
tected against siphonage and backpressure by a vent pipe. 

(6) A connection, cross-connection, construction, or condi- 
tion, temporary or permanent, that would permit or make 
possible by any means whatsoever for an unapproved 
foreign matter to enter a water distribution system used 
for domestic purposes. 

(7) The foregoing enumeration of conditions to which the 
term "insanitary" shall apply, shall not preclude the appli- 
cation of that term to cond itions that are, in fact, insani- 
tary. 

Interceptor (Clarifier). A device designed and installed so as 
to separate and retain deleterious, hazardous, or undesirable 
matter from normal, wastes and permit normal sewage or liq- 
uid wastes to discharge into the disposal terminal by gravity. 

Invert. The lowest portion of the inside of a horizontal pipe. 

Irrigation Field [BSC & BCD !]. An intended destination 
for gray water in the receiving landscape, including but not 
limited to, a drip irrigation system, mulch basin, or other 
approved method of dispersal for irrigation purposes. 

212.0 - J - 

Joint, Brazed. A joint obtained by joining of metal parts with 
alloys that melt at temperatures exceeding 840°F (449°C), but 
less than the melting temperature of the parts to be joined. 

Joint, Soldered. A joint obtained by the joining of metal parts 
with metallic mixtures or alloys that melt at a temperature up 
to and including 840°F (449°C). 

Joint, Welded. A gastight joint obtained by the joining of 
metal parts in the plastic molten state. 

213.0 - K - 

No definitions. 

214.0 -L- 

Labeied. Equipment or materials bearing a label of a listing 
agency (accredited conformity assessment body). See Listed 
(third-party certified). 



34 



2013 CALIFORNIA PLUMBING CODE 



DEFINITIONS 



[HCD 1 <£ HCD 2] "Labeled" means equipment or materi- 
als to which has been attached a label symbol or other iden- 
tifying mark of an organization, approved by the Department, 
that maintains a periodic inspection program of production of 
labeled products, installations, equipment, or materials and 
by whose labeling the manufacturer indicates compliance 
with appropriate standards or performance in a specified 
manner. 

Lavatories in Sets. Two or three lavatories that are served 
by one trap. 

Lavatory [HCD 1 & HCD 2], "Lavatory" shall mean a 
plumbing fixture used for washing the hands, arms, face and 
head. 

Leader. An exterior vertical drainage pipe for conveying 
storm water from roof or gutter drains. See Downspout. 

|| Limited-Density Owner-Built Rural Dwelling [HCD 1J. 

"Limited-density owner-built rural dwelling" shall mean any 
structure consisting of one or more habitable rooms intended 
or designed to be occupied by one family with facilities for 
living or sleeping, with use restricted to rural areas desig- 
nated by local jurisdiction in compliance with the require- 
ments of Health and Safety Code Section 17958.2. 

I Liquefied Petroleum Gas (LPG) Facilities. Liquefied petro- 
leum gas (LPG) facilities means tanks, containers, container 
valves, regulating equipment, meters, appurtenances, or any 

I combination thereof for the storage and supply of liquefied 
petroleum gas for a building, structure, or premises. 

Liquid Waste. The discharge from a fixture, appliance, or 
appurtenance in connection with a plumbing system that does 
not receive fecal matter. 

Listed [HCD 1 & HCD 2]» "Listed" means all products that 
appear in a list published by an approved testing or listing 
agency. For additional information, see Health and Safety 
Code Section 17920(h). 

Listed (Third-party certified). Equipment or materials 
included in a list published by a listing agency (accredited 
conformity assessment body) that maintains periodic inspec- 
tion on current production of listed equipment or materials 
and whose listing states either that the equipment or material 
complies with approved standards or has been tested and 
found suitable for use in a specified manner. 

Listing Agency. An agency accredited by an independent and 
authoritative conformity assessment body to operate a mate- 
rial and product listing and labeling (certification) system and 
that is accepted by the Authority Having Jurisdiction, which 
is in the business of listing or labeling. The system includes 
initial and ongoing product testing, a periodic inspection on 
current production of listed (certified) products, and makes 
available a published report of such listing in which specific 
information is included that the material or product is in 
accordance with applicable standards and found safe for use 
in a specific manner. 

[HCD 1 & HCD 2] "Listing Agency" means an agency 
approved by the department that is in the business of listing 
and labeling products, materials, equipment, and installa- 
tions tested by an approved testing agency, and that main- 
tains a periodic inspection program on current production of 



listed products, equipment, and installations, and that, at least 
annually, makes available a published report of these listings. 
For additional information, see Health and Safety Code Sec- 
tion 1 7920(i) . 

Lot. A single or individual parcel or area of land legally 
recorded or validated by other means acceptable to the Author- 
ity Having Jurisdiction on which is situated a building or 
which is the site of any work regulated by this code, together 
with the yards, courts, and unoccupied spaces legally required 
for the building or works, and that is owned by or is in the law- 
ful possession of the owner of the building or works. 

Low Hazard. See Pollution. 

Law VOC Cement [HCD 1 & HCD 2/. Cement with a volatile 
organic compound (VOC) content of less than or equal to 490 
g/Lfor CPVC Cement, 510g/LforPVC Cement, and 325 g/L 
forABS Cement, as determined by the South Coast Air Qual- 
ity Management District s Laboratory Methods of Analysis for 
Enforcement Samples, Method 316A. 

Low VOC One-Step Cement [HCD 1 & HCD 2J. Listed sol- 
vent cements that do not require the use of primer with a 
volatile organic compound (VOC) content of less than or equal 
to 490 g/Lfor CPVC Cement, 510 g/Lfor PVC Cement, and 
325 g/L for ABS Cement, as determined by the South Coast Air 
Quality Management District s Laboratory Methods of Analy- 
sis for Enforcement Samples, Method 316A. 

Low VOC Primer [HCD 1 & HCD 2/. Primer with a volatile 
organic compound (VOC) content of less than or equal to 550 
g/L, as determined by the South Coast Air Quality Manage- 
ment District s Laboratory Methods of Analysis for Enforce- 
ment Samples, Method 316A. 

215.0 -M- 

Macerating Toilet System. A system comprised of a sump 
with macerating pump and with connections for a water closet 
and other plumbing fixtures, which is designed to accept, 
grind, and pump wastes to an approved point of discharge. 

Main. The principal artery of a system of continuous piping 
to which branches may be connected. 

Main Sewer. See Public Sewer. 

Main Vent. The principal artery of the venting system to 
which vent branches may be connected. 
May. A permissive term. 

Medical Air. For purposes of this code, medical air is air sup- 1 
plied from cylinders, bulk containers, medical air compres- 
sors, or has been reconstituted from oxygen USP and oil-free, 
dry nitrogen NF [NFPA 99:3.3.106]. Medical air shall be 
required to have the following characteristics: 

(1) Be supplied from cylinders, bulk containers, medical air 
compressor sources, or be reconstituted from oxygen 
USP and oil-free dry nitrogen NF. 

(2) Meet the requirements of medical air USP 

(3) Have no detectable liquid hydrocarbons. 

(4) Have less than 25 parts per million (ppm) gaseous hydro- 
carbons. 



2013 CALIFORNIA PLUMBING CODE 



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35 



DEFINITIONS 



(5) Have equal to or less than 1.8 E- 10 pounds per cubic inch 
(lb/in 3 ) (5 mg/m 3 ) of permanent particulates sized one 
micron or larger in the air at normal atmospheric pres- 
sure. [NFPA 99:5.1.3.5.1] 

I Medical Gas. Gas used in a medical facility, including oxy- 
gen, nitrous oxide, carbon dioxide, helium, medical air, and 
mixtures of these gases. Standards of purity apply. 

I Medical Gas Building Supply. The pipe from the source of 
supply to a building or structure. 

I Medical Gas Manifold. A device for connecting outlets of 
one or more gas cylinders to the central piping system for that 
specific gas. [NFPA 99:3.3. 103] 

| Medical Gas System. Complete system consisting of a cen- 
tral supply system (manifold, bulk, or compressors), includ- 
ing control equipment and piping extending to station outlets 
at the points where medical gases are required. 

| Medical Vacuum System. See Vacuum System - Level 1 . 
Mobile Home Park Sewer. That part of the horizontal piping 
of a drainage system that begins 2 feet (610 mm) downstream 
from the last mobile home site and conveys it to a public 
sewer, private sewer, private sewage disposal system, or other 
point of disposal. 

Mulch. Organic materials, such as wood chips and fines, tree 
bark chips, and pine needles that are used in a mulch basin to 
conceal gray water outlets and permit the infiltration of gray 
water. 

Mulch Basin [BSC & HCD //. A subsurface type of irriga- 
tion or disposal field filled with mulch or other approved per- 
meable material of sufficient depth, length, and width to 
prevent ponding or runoff A mulch basin may include a basin 
around a tree, a trough along a row of plants, or other shapes 
necessary for irrigation or disposal. 

216.0 -N- 
| Nitrogen, NF (Oil-Free, Dry) (Nitrogen for Brazing and 
Testing). Nitrogen complying, at a minimum, with oil-free, 
dry nitrogen NF. [NFPA 99:3.3.120.1] 

\\Nonwater Supplied Urinal [HCD //. A plumbing fixture 
which does not require water supply and is designed to 
receive and convey the uninhibited flow of liquid waste to the 
gravity drainage system. 

Nuisance. Includes, but is not limited to: 

(1) A public nuisance known at common law or in equity 
jurisprudence. 

(2) Where work regulated by this code is dangerous to 
human life or is detrimental to health and property. 

(3) Inadequate or unsafe water supply or sewage disposal 
system. 

(HCD 1 & HCD 2] "Nuisance" shall mean any nuisance as 
defined in Health and Safety Code Section 1 7920(h). 

Notes: 

1. For applications subject to the Mobilehome Parks Act as 
referenced in Section 1.8.3.2.2 of this code, refer to Cal- 
ifornia Code of Regidations, Title 25, Division 1, Chap- 
ter 2 for the definition of "Nuisance ". 



2. For applications subject to the Special Occupancy Parks 
Act as referenced in Section 1.8.3.2.3 of this code, refer 
to California Code of Regulations, Title 25, Division L 
Chapter 2.2 for the definition of "Nuisance 

217.0 - O - 

Offset. A combination of elbows or bends in a line of piping 
that brings one section of the pipe out of line but into a line 
parallel with the other section. 
Oil Interceptor. See Interceptor. 

On-Site Treated Nonpotable Water [BSC & HCD If Non- 
potable water that has been collected, treated, and intended 
to be used on-site and is suitable for direct beneficial use. 
Sources for on-site treated nonpotable water include, but are 
not limited to, gray water; rainwater; stormwater; reclaimed 
(recycled) water; cooling tower blow-down water; and foun- 
dation drainage. \ 

218.0 - P- 

Patient Care Area. A portion of a health care facility wherein | 
patients are intended to be examined or treated. [NFPA 
99:3.3.138] 

PB. Polybutylene. 

PE. Polyethylene. 

PE-AL-PE. Polyethylene-aluminum-polyethylene. 

PE-RT. Polyethylene of raised temperature. | 

Penetration Firestop System. A specific assemblage of | 
field-assembled materials, or a factory-made device, which 
has been tested to a standard test method and, where installed 
properly on penetrating piping materials, is capable of main- 
taining the fire- resistance rating of assemblies penetrated. 

Person. A natural person, his heirs, executor, administrators, 
or assigns and shall also include a firm, corporation, munici- 
pal or quasi-municipal corporation, or governmental agency. 
Singular includes plural, male includes female. 

PEX. Cross-linked polyethylene. 

PEX-AL-PEX. Cross-linked polyethylene-aluminum-cross- 
linked polyethylene. 

Pipe. A cylindrical conduit or conductor conforming to the 
particular dimensions commonly known as "pipe size." 

Plumbing. The business, trade, or work having to do with the 
installation, removal, alteration, or repair of plumbing sys- 
tems or parts thereof. 

Plumbing Appliance. A special class of device or equipment 
that is intended to perform a special plumbing function. Its 
operation, control, or both may be dependent upon one or 
more energized components, such as motors, controls, heat- 
ing elements, or pressure- or temperature-sensing elements. 
Such device or equipment may operate automatically through 
one or more of the following actions: a time cycle, a temper- 
ature range, a pressure range, a measured volume or weight; 
or the device or equipment may be manually adjusted or con- 
trolled by the user or operator. 



30 



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DEFINITIONS 



Plumbing Appurtenance. A manufactured device, a prefab- 
ricated assembly, or an on-the-job assembly of component 
parts that is an adjunct to the basic piping system and plumb- 
ing fixtures. An appurtenance demands no additional water 
supply, nor does it add a discharge load to a fixture or the 
drainage system. It performs some useful function in the oper- 
ation, maintenance, servicing, economy, or safety of the 
plumbing system. 

Plumbing Fixture. An approved-type installed receptacle, 
device, or appliance that is supplied with water or that 
receives liquid or liquid-borne wastes and discharges such 
wastes into the drainage system to which it may be directly or 
indirectly connected. Industrial or commercial tanks, vats, 
and similar processing equipment are not plumbing fixtures, 
but may be connected to or discharged into approved traps or 
plumbing fixtures where and as otherwise provided for else- 
where in this code. 

Plumbing Official. See Authority Having Jurisdiction. 
Plumbing System. Includes all potable water, building sup- 
ply, and distribution pipes; all plumbing fixtures and traps; 
all drainage and vent pipes; and all building drains and build- 
ing sewers, including their respective joints and connections, 
devices, receptors, and appurtenances within the property 
lines of the premises and shall include potable water piping, 
potable water treating or using equipment, medical gas and 
medical vacuum systems, liquid and fuel gas piping, and 
water heaters and vents for same. 

| Plumbing Vent. A pipe provided to ventilate a plumbing sys- 
tem, to prevent trap siphonage and backpressure, or to equal- 
ize the air pressure within the drainage system. 

| Plumbing Vent System. A pipe or pipes installed to provide 
a flow of air to or from a drainage system or to provide a cir- 
culation of air within such system to protect trap seals from 
siphonage and backpressure. 

Pollution. An impairment of the quality of the potable water 
to a degree that does not create a hazard to the public health 
but which does adversely and unreasonably affect the aes- 
thetic qualities of such potable water for domestic use. Also 
defined as Low Hazard. 

Potable Water. Water that is satisfactory for drinking, culi- 
nary, and domestic purposes and that meets the requirements 
of the Health Authority Having Jurisdiction. 

PP. Polypropylene. 
I Pressed Fitting. A mechanical connection for joining copper 
tubing that uses a crimping tool to affix the O-ring seal cop- 
per or copper alloy fitting to the tubing. The tubing shall be 
inserted into the fitting, and the crimp shall be made using 
the tool recommended by the manufacturer. 
Pressure. The normal force exerted by a homogeneous liquid 
or gas, per unit of area, on the wail of the container. 

Residual Pressure. The pressure available at the fixture 
or water outlet after allowance is made for pressure drop 
due to friction loss, head, meter, and other losses in the 
system during maximum demand periods. 
Static Pressure. The pressure existing without any flow. 



Pressure-Balancing Valve. A mixing valve that senses 
incoming hot and cold water pressures and compensates for 
fluctuations in either to stabilize outlet temperature. 
Pressure-Lock-Type Connection. A mechanical connection J 
that depends on an internal retention device to prevent pipe or 
tubing separation. Connection is made by inserting the pipe or 
tubing into the fitting to a prescribed depth. 
Private or Private Use. Applies to plumbing fixtures in resi- 
dences and apartments, to private bathrooms in hotels and hos- 
pitals, and to resrrooms in commercial establishments where the 
fixtures are intended for the use of a family or an individual. 
Private Sewage Disposal System. A septic tank with the efflu- 
ent discharging into a subsurface disposal field, into one or 
more seepage pits, or into a combination of subsurface disposal 
field and seepage pit or of such other facilities as may be per- 
mitted under the procedures set forth elsewhere in this code. 
Private Sewer, A building sewer that receives the discharge 
from more than one building drain and conveys it to a public 
sewer, private sewage disposal system, or other point of dis- 
posal. 

Provision for Location of Point of Delivery. The location | 
of the point of delivery shall be acceptable to the serving gas 
supplier. [NFPA 54:5.2] 

Public or Public Use. Applies to plumbing fixtures that are 
not defined as private or private use. 
Public Sewer. A common sewer directly controlled by pub- 
lic authority. 

Purge, Flow (Medical Gas). The removal of oxygen from a | 
system by oil-free dry nitrogen during brazing. 
Purge, System (Medical Gas). The removal of nitrogen from | 
a system with the medical gas required for that system. 
Push Fit Fitting. A mechanical fitting where the connection | 
is assembled by pushing the tube or pipe into the fitting and 
is sealed with an "CT ring. 
PVC. Polyvinyl chloride). 
PVDF. Polyvinylidene Fluoride. 

219.0 -Q- 

Quick-Disconnect Device. A hand-operated device that pro- 
vides a means for connecting and disconnecting a hose to a 
water supply and that is equipped with a means to shut off 
the water supply where the device is disconnected. 

220.0 R 

Rainwater (BSC & HCD //. Precipitation on any public or 
private parcel that has not entered an offsite storm drain sys- 
tem or channel a flood control channel, or any other stream 
channel and has not previously been put to beneficial use. 
Rainwater Catchment System [BSC & HCD 1J. A facility 
designed to capture, retain, and store rainwater flowing off a 
building, parking lot, or any other manmade impervious sur- 
face for subsequent onsite use. Rainwater catchment system 
is also known as u Rainwater Harvesting System " or "Rain- 
water Capture System. " 



2013 CALIFORNIA PLUMBING CODE 



DECEMBER 7, 2013 SUPPLEMENT 

□ I I IE 



37 



DEFINITIONS 



I Rainwater Storage Tank. The central component of the rain- 
I water catchment system. Also known as a cistern or rain barrel. 
Receptor. An approved plumbing fixture or device of such 
material, shape, and capacity as to adequately receive the dis- 
charge from indirect waste pipes, so constructed and located 
as to be readily cleaned. 

\\ Receiving Landscape [BSC & BCD //. Includes features 
\\such as soil, basins, swales, mulch, and plants. 
Reclaimed (Recycled) Water [BSC & HCD 1J. Nonpotable 
water that meets California Department of Public Health 
statewide uniform criteria for disinfected tertiary recycled 
water Reclaimed (recycled) water is also known as "recycled 
water'' or "reclaimed water". 

Regulating Equipment. Includes valves and controls used 
in a plumbing system that are required to be accessible or 
readily accessible. 

Relief Vent. A vent, the primary function of which is to pro- 
vide circulation of air between drainage and vent systems or 
to act as an auxiliary vent on a specially designed system. 

Remote Outlet. Where used for sizing water piping, it is the 
furthest outlet dimension, measuring from the meter, either 
the developed length of the cold-water piping or through the 
water heater to the furthest outlet on the hot-water piping. 
Rim. See Flood-Level Rim. 

Riser. A water supply pipe that extends vertically one full 
story or more to convey water to branches or fixtures. 
Roof Drain. A drain installed to receive water collecting on 
the surface of a roof and to discharge it into a leader, down- 
spout, or conductor. 

Roof Washer. A device or method for removal of sediment and 
debris from a collection surface by diverting initial rainfall from 
entry into the cistern(s). Also known as a first flush device. 
Roughing-In. The installation of all parts of the plumbing 
system that can be completed prior to the installation of fix- 
tures. This includes drainage, water supply, gas piping, vent 
piping, and the necessary fixture supports. 

221.0 -S- 
Sand Interceptor. See Interceptor. 
| SCFM. Standard cubic feet per minute. [NFPA 99:3.3.163] 
Scrub Sink [OSHPD /, 2, 5, & 4]. Is a sink used to wash and 
scrub the hands and arms during the septic preparation for 
surgery and equipped with a supply spout and controls as 
required for a handwashing fixture. Sensor operated fixtures 
shall be capable of functioning during loss of normal power. 

SDR. An abbreviation for "standard dimensional ratio," 
which is the specific ratio of the average specified outside 
diameter to the minimum wall thickness for outside controlled 
diameter plastic pipe. 

| Seam, Welded. See Joint, Welded. 

Seepage Pit. A lined excavation in the ground which receives 
the discharge of a septic tank so designed as to permit the efflu- 
ent from the septic tank to seep through its bottom and sides. 



Septic Tank. A watertight receptacle that receives the dis- 
charge of a drainage system or part thereof, designed and con- 
structed so as to retain solids, digest organic matter through 
a period of detention, and allow the liquids to discharge into 
the soil outside of the tank through a system of open joint pip- 
ing or a seepage pit meeting the requirements of this code. 
Service Piping. The piping and equipment between the street [ 
gas main and the gas piping system inlet that is installed by, 
and is under the control and maintenance of, the serving gas 
supplier. 

Sewage. Liquid waste containing animal or vegetable matter 
in suspension or solution and that may include liquids con- 
taining chemicals in solution. 

Sewage Ejector. A device for lifting sewage by entraining it 
on a high-velocity jet stream, air, or water. 

Sewage Pump. A permanently installed mechanical device, 
other than an ejector, for removing sewage or liquid waste 
from a sump. 

Shall. Indicates a mandatory requirement. 

Shielded Coupling. An approved elastomeric sealing gasket 
with an approved outer shield and a tightening mechanism. 
Shock Arrester. See Water Hammer Arrester. 

Should. Indicates a recommendation or that which is advised 
but not required. 

Simple System [BSC & HCD If. A gray water system serv- 
ing one-and two-family dwellings, townhouses, or other occu- 
pancies with a discharge of 250 gallons (947 L) per day or 
less. Simple systems exceed a clothes washer system. 

Size and Type of Tubing. See Diameter. 
Slip Joint. An adjustable tubing connection, consisting of a 
compression nut, a friction ring, and a compression washer, 
designed to fit a threaded adapter fitting or a standard taper 
pipe thread. 

Slope. See Grade. 

Soil Pipe. A pipe that conveys the discharge of water closets, 
urinals, clinic sinks, or fixtures having similar functions of 
collection and removal of domestic sewage, with or without 
the discharge from other fixtures, to the building drain or 
building sewer. 

Special Hazard Area (Medical Gas). An area such as a 
kitchen or electrical switch-gear room. 

Special Wastes. Wastes that require some special method of 
handling, such as the use of indirect waste piping and recep- 
tors, corrosion-resistant piping, sand, oil or grease intercep- 
tors, condensers, or other pretreatment facilities. 

Stack. The vertical main of a system of soil, waste, or vent 
piping extending through one or more stories. 

Stack Vent. The extension of a soil or waste stack above the 
highest horizontal drain connected to the stack. 
Standard. A document, the main text of which contains only 
mandatory provisions using the word "shall" to indicate 
requirements and which is in a form generally suitable for 
mandatory reference by another standard or code or for adop- 



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DEFINITIONS 



tion into law. Nonmandatory provisions shall be located in an 
appendix, footnote, or fine print note and are not to be con- 
sidered a part of the requirements of a standard. 

| Station Inlet. An inlet point in a medical-surgical piped vac- 
uum distribution system at which the user makes connections 
and disconnections. [NFPA 99:3.3. 171] 

| Station Outlet. An inlet point in a piped medical/surgical 
vacuum distribution system at which the user makes connec- 
tions and disconnections. [NFPA 99:3.3. 172] 

Storm Drain. See Building Drain (Storm). 

Storm Sewer. A sewer used for conveying rainwater, surface 
water, condensate, cooling water, or similar liquid wastes. 

Subsoil Drain. A drain that collects subsurface or seepage 
water and conveys it to a place of disposal. 

Subsoil Irrigation Field. Gray water irrigation field installed 
in a trench within the layer of soil below the topsoil. This sys- 
tem is typically used for irrigation of deep rooted plants. 

I Subsurface Irrigation Field. Gray water irrigation field 
I installed below finished grade within the topsoil. 

Sump. An approved tank or pit that receives sewage or liquid 
waste and which is located below the normal grade of the grav- 
ity system and which must be emptied by mechanical means. 

Supports. Supports, hangers, and anchors are devices for prop- 
erly supporting and securing pipe, fixtures, and equipment. 

Surge Tank. A reservoir to modify the fluctuation in flow 
rates to allow for uniform distribution of gray water to the 
points of irrigation. 

222.0 -T- 

| T Rating. The time period that the penetration firestop sys- 
tem, including the penetrating item, limits the maximum tem- 
perature rise of 325°F (163°C) above its initial temperature 
through the penetration on the nonfire side, where tested in 
accordance with ASTM E 814 or UL 1479. 

Tailpiece. The pipe or tubing that connects the outlet of a 
plumbing fixture to a trap. 

|| Testing Agency [HCD 1J. See "Approved Testing Agency". 

Thermostatic (Temperature Control) Valve. A mixing 
valve that senses outlet temperature and compensates for fluc- 
tuations in incoming hot or cold water temperatures. 

Toilet [OSHPD 1, 2, 3 & 4J. A fixture within a toilet room 
which is used for defection or urination. 

Toilet Room [OSHPD 1, 2, 3 & 4 J. A room within or on the 
premises containing water closets, urinals, and other required 
facilities. 

| Transition Gas Riser, A listed or approved section or sec- 
tions of pipe and fittings used to convey fuel gas and installed 
in a gas piping system for the purpose of providing a transi- 
tion from belowground to aboveground. 

Trap. A fitting or device so designed and constructed as to 
provide, where properly vented, a liquid seal that will prevent 
the back passage of air without materially affecting the flow 
of sewage or wastewater through it. 

Trap Arm. That portion of a fixture drain between a trap and 
the vent. 



Trap Primer, A device and system of piping that maintains a 
water seal in a remote trap. 

Trap Seal. The vertical distance between the crown weir and 

the top dip of the trap. 

Crown Weir (Trap Weir). The lowest point in the cross- 
section of the horizontal waterway at the exit of the trap. 

Top Dip (of trap). The highest point in the internal 
cross-section of the trap at the lowest part of the bend 
(inverted siphon). By contrast, the bottom dip is the low- 
est point in the internal cross-section. 

Treated Gray Water [BSC & HCD 1], Nonpotable water 
meeting the definition of "gray water" collected and treated 
on-site suitable for direct beneficial use. 

Type B Gas Vent. A factory-made gas vent listed by nation- 
ally recognized testing agency for venting listed or approved 
appliances equipped to burn only gas. 

Type BW Gas Vent. A factory-made gas vent listed by a 
nationally recognized testing agency for venting listed or 
approved gas-fired vented wall furnaces. 

Type L Gas Vent. A venting system consisting of listed vent 
piping and fittings for use with oil-burning appliances listed 
for use with Type L or with listed gas appliances, 

223.0 -U- 

Uneonfined Space. A room or space having a volume equal 
to not less than 50 cubic feet per 1000 Btu/h (4.83 rnVkW) of 
the aggregate input rating of all fuel-burning appliances 
installed in that space. Rooms communicating directly with 
the space in which the appliances are installed, through open- 
ings not furnished with doors, are considered a part of the 
unconfined space. 
Unsanitary. See Insanitary. 

UPC [HCD 1J. "UPC" is the latest edition of the Uniform\\ 
Plumbing Code, published by the International Association 
of Plumbing and Mechanical Officials. 

Use Point. A room or area of a room where medical gases are | 
dispensed to a single patient for medical purposes. A use point 
is permitted to be comprised of a number of station outlets of 
different gases. 

User Outlet. See Station Outlet. | 
224.0 - V- 

Vacuum. A pressure less than that exerted by the atmosphere. 

Vacuum Breaker. See Backflow Preventer. 

Vacuum Relief Valve. A device that prevents excessive vac- 
uum in a pressure vessel. 

Vacuum System-Level 1. A system consisting of central vac- 1 
uum-producing equipment with pressure and operating con- 
trols, shutoff valves, alarm warning systems, gauges, and a 
network of piping extending to and terminating with suitable 
station inlets at locations where patient suction could be 
required. [NFPA 99:3.3.91] 

Valve, Isolation. A valve that isolates one piece of equipment | 
from another. 

39 



2013 CALIFORNIA PLUMBING CODE DECEMBER 7, 2013 SUPPLEMENT 

BLUE 



DEFINITIONS 



I Valve, Riser. A valve at the base of a vertical riser that isolates 
that riser. 

| Valve, Service. A valve serving horizontal piping extending 
from a riser to a station outlet or inlet. 

| Valve, Source. A single valve at the source that controls a 
number of units that make up the source. 

| Valve, Zone. A valve that controls the gas or vacuum to a par- 
ticular area. 

I Vent. See Plumbing Vent. 

Vent Connector, Gas. That portion of a gas venting system 
that connects a listed gas appliance to a gas vent and is installed 
within the space or area in which the appliance is located. 
| Vent Pipe. See Plumbing Vent. 

Vent Stack. The vertical vent pipe installed primarily for the 
purpose of providing circulation of air to and from any part of 
the drainage system. 

| Vent System. See Plumbing Vent System. 

Vented Flow Control Device. A device installed upstream 
from the hydromechanical grease interceptor having an ori- 
fice that controls the rate of flow through the interceptor, and 
an air intake (vent) downstream from the orifice, which 
allows air to be drawn into the flow stream. 

Vertical Pipe. A pipe or fitting that is installed in a vertical 
position or that makes an angle of not more than 45 degrees 
(0.79 rad) with the vertical. 

225.0 -W- 

Wall-Hung Water Closet. A water closet installed in such a 
way that no part of the water closet touches the floor. 

Waste. See Liquid Waste and Industrial Waste. 

I Waste Anesthetic Gas Disposal. The process of capturing 
and carrying away gases vented from the patient breathing 
circuit during the normal operation of gas anesthesia or anal- 
gesia equipment. [NFPA 99:3.3.184] 

Waste Pipe. A pipe that conveys only liquid waste, free of 
fecal matter. 

|| Water Closet fHCD 1J. "Water Closet " is a plumbing fixture 
(which may be used for both solids and liquids) in which the 
waste matter is removed by flushing with water. 

Water-Conditioning or Treating Device. A device that con- 
ditions or treats a water supply so as to change its chemical 
content or remove suspended solids by filtration. 

I Water Distribution Pipe. In a building or premises, a pipe 
that conveys potable water from the building supply pipe to 
the plumbing fixtures and other water outlets. 

Water Hammer Arrester. A device designed to provide pro- 
tection against hydraulic shock in the building water supply 
system. 

Water Heater or Hot Water Heating Boiler. An appliance 
designed primarily to supply hot water for domestic or com- 
mercial purposes and equipped with automatic controls lim- 
iting water temperature to a maximum of 210°F (99°C). 



Water Main (Street Main). A water supply pipe for public 
or community use. 

Water Supply System. The building supply pipe, the water 
distribution pipes, and the necessary connecting pipes, fit- 1 
tings, control valves, backflow prevention devices, and all 
appurtenances carrying or supplying potable water in or adja- 
cent to the building or premises. 

WaterAVastewater Utility. A public or private entity which 
may treat, deliver, or do both functions to reclaimed (recy- 
cled) water, potable water, or both to wholesale or retail cus- 
tomers. 5 

Welder, Pipe. A person who specializes in the welding of 
pipes and holds a valid certificate of competency from a rec- 
ognized testing laboratory, based on the requirements of the 
ASME Boiler and Pressure Vessels code, Section IX. 
Wet Vent. A vent that also serves as a drain. 

Whirlpool Bathtub. A bathtub fixture equipped and fitted 
with a circulating piping system designed to accept, circulate, 
and discharge bathtub water upon each use. 

226.0 - X - 

No definitions. 

227.0 -Y- 

Yoke Vent. A pipe connecting upward from a soil or waste 
stack to a vent stack for the purpose of preventing pressure 
changes in the stacks. 

228.0 -Z- 

No definitions. 



■A) 



DECEMBER 7, 2013 SUPPLEMENT 
BLUE 



2013 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 3 - GENERAL REGULATIONS 

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 



Adopting Agency 


BSC 


SFM 


HCD 


DSA 


OSHPD 


BSCC 


DPH 


AGS 


DWR 


CA 


SL 


SLC 


1 


2 


1-AC 


AC 


SS 


SS/CC 


1 


2 


3 


4 


Adopt Entire Chapter 


X 












X 


X 
























Adopt Entire Chapter as amended 
(amended sections listed below) 




X 


X 


X 










X 


X 


X 


X 
















A rlrtnf AnK; tVi/~i c o c*a/>tir»r"iC' that ard 

/\uupi oniy inose bccuons indi die 
listed below 

Chapter/Section 








































301.2 






X 


X 
































301.2.1 






t 

I 


t 

1 
































1 A 1 1 1 1 

301.2.1.1 






4* 

T 


4- 

T 
































301.2. 1.2 






t 


t 
































301.5 






X 


X 
































303.1 Exception 






X 












I 






















304.1 Exception 






X 


































310.9 


















X 


X 


X 


X 
















Mil :o 


















X 




X 


X 
















310.11 




X 




































310.12 


















X 


X 




X 
















313.8 


















X 


X 


X 


X 


X 














319.0 


















X 


X 


X 


X 

















The state agency does not adopt sections identified by the following symbol: 



2013 CALIFORNIA PLUMBING CODE 



JANUARY 1, 2014 ERRATA 
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41 



2013 CALIFORNIA PLUMBING CODE 



CHAPTER 3 

GENERAL REGULATIONS 



301.0 Materials - Standards and Alternates. 

301.1 Minimum Standards. Pipe, pipe fittings, traps, fix- 
tures, material, and devices used in a plumbing system shall 
be listed or labeled (third-party certified) by a listing agency 
(accredited conformity assessment body) and shall comply 
with the approved applicable recognized standards referenced 
in this code, and shall be free from defects. Plastic pipe and 
the fittings used for plastic pipe, other than those for gas, shall 
meet the requirements of NSF 14. Unless otherwise provided 
for in this code, materials, fixtures, or devices used or enter- 
ing into the construction of plumbing systems, or parts 
thereof, shall be submitted to the Authority Having Jurisdic- 
tion for approval. 

301.1.1 Marking. Each length of pipe and each pipe fit- 
ting, trap, fixture, material, and device used in a plumb- 
ing system shall have cast, stamped, or indelibly marked 
on it the manufacturer's mark or name, which shall read- 
ily identify the manufacturer to the end user of the prod- 
uct. Where required by the approved standard that 
applies, the product shall be marked with the weight and 
the quality of the product. Materials and devices used or 
entering into the construction of plumbing and drainage 
systems, or parts thereof, shall be marked and identified 
in a manner satisfactory to the Authority Having Juris- 
diction. Such marking shall be done by the manufacturer. 
Field markings shall not be acceptable. 

301.1.2 Standards. Standards listed or referred to in this 
chapter or other chapters cover materials that will con- 
form to the requirements of this code, where used in 
accordance with the limitations imposed in this or other 
chapters thereof and their listing. Where a standard cov- 
ers materials of various grades, weights, quality, or con- 
figurations, the portion of the listed standard that is 
applicable shall be used. Design and materials for spe- 
cial conditions or materials not provided for herein shall 
be permitted to be used only by special permission of the 
Authority Having Jurisdiction after the Authority Hav- 
ing Jurisdiction has been satisfied as to their adequacy. A 
list of accepted plumbing material standards is referenced 
in Table 1401.1. 1APMO Installation Standards are ref- 
erenced in Appendix I for the convenience of the users of 
this code. They are not considered as a part of this code 
unless formally adopted as such by the Authority Having 
Jurisdiction. 

301.1.3 Existing Buildings. In existing buildings or 
premises in which plumbing installations are to be 
altered, repaired, or renovated, the Authority Having 
Jurisdiction has discretionary powers to permit deviation 
from the provisions of this code, provided that such pro- 
posal to deviate is first submitted for proper determina- 
tion in order that health and safety requirements, as they 
pertain to plumbing, shall be observed. 

301.2 Alternate Materials and Methods of Construction 
Equivalency. Nothing in this code is intended to prevent the 



use of systems, methods, or devices of equivalent or superior 
quality, strength, fire resistance, effectiveness, durability, and 
safety over those prescribed by this code. Technical docu- 
mentation shall be submitted to the Authority Having Juris- 
diction to demonstrate equivalency. The Authority Having 
Jurisdiction shall have the authority to approve or disapprove 
the system, method, or device for the intended purpose. 
[HCD 1] (See Section 1.8. 7). \\ 

However, the exercise of this discretionary approval by 
the Authority Having Jurisdiction shall have no effect beyond 
the jurisdictional boundaries of said Authority Having Juris- 
diction. An alternate material or method of construction so 
approved shall not be considered as in accordance with the 
requirements, intent, or both of this code for a purpose other 
than that granted by the Authority Having Jurisdiction where 
the submitted data does not prove equivalency. 

301.2.1 Testing. The Authority Having Jurisdiction shall 
have the authority to require tests, as proof of equiva- 
lency. 

301.2.1.1 Tests. Tests shall be made in accordance 
with approved or applicable standards, by an 
approved testing agency at the expense of the appli- 
cant. In the absence of such standards, the Authority 
Having Jurisdiction shall have the authority to spec- 
ify the test procedure. 

301.2.1.2 Request by Authority Having Jurisdic- 
tion. The Authority Having Jurisdiction shall have 
the authority to require tests to be made or repeated 
where there is reason to believe that a material or 
device no longer is in accordance with the require- 
ments on which its approval was based. 

301.3 Flood Hazard Areas. Plumbing systems shall be 
located above the elevation in accordance with the building 
code for utilities and attendant equipment or the elevation of 
the lowest floor, whichever is higher. 
Exception: Plumbing systems shall be permitted to be 
located below the elevation in accordance with the building 
code for utilities and attendant equipment or the elevation of 
the lowest floor, whichever is higher, provided that the sys- 
tems are designed and installed to prevent water from enter- 
ing or accumulating within their components and the systems 
are constructed to resist hydrostatic and hydrodynamic loads 
and stresses, including the effects of buoyancy, during the 
occurrence of flooding to such elevation. 

301.3.1 Flood Hazard Areas Subject to High- Velocity 
Wave Action. Plumbing systems in buildings located in 
flood hazard areas subject to high-velocity wave action 
shall be in accordance with the requirements of Section 
301.3, and plumbing systems, pipes, and fixtures shall 
not be mounted on or penetrate through walls that are 
intended to breakaway under flood loads in accordance 
with the building code. 



2013 CALIFORNIA PLUMBING CODE 



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BUFF 



43 



GENERAL REGULATIONS 



301.4 Alternative Engineered Design. An alternative engi- 
neered design shall comply with the intent of the provisions 
of this code and shall provide an equivalent level of quality, 
strength, effectiveness, fire resistance, durability, and safety. 
Material, equipment, or components shall be designed and 
installed in accordance with the manufacturer's installation 
instructions. 

301.4.1 Permit Application. The registered professional 
engineer shall indicate on the design documents that the 
plumbing system, or parts thereof, is an alternative engi- 
neered design so that it is noted on the construction per- 
mit application. The permit and permanent permit 
records shall indicate that an alternative engineered 
design was part of the approved installation. 

301.4.2 Technical Data. The registered professional 
engineer shall submit sufficient technical data to sub- 
stantiate the proposed alternative engineered design and 
to prove that the performance meets the intent of this 
code. 

301.4.3 Design Documents. The registered professional 
engineer shall provide two complete sets of signed and 
sealed design documents for the alternative engineered 
design for submittal to the Authority Having Jurisdiction. 
The design documents shall include floor plans and a 
riser diagram of the work. Where appropriate, the design 
documents shall indicate the direction of flow, pipe sizes, 
grade of horizontal piping, loading, and location of fix- 
tures and appliances. 

301.4.4 Design Approval. An approval of an alternative 
engineered design shall be at the discretion of the Author- 
ity Having Jurisdiction. The exercise of this discretionary 
approval by the Authority Having Jurisdiction shall have 
no effect beyond the jurisdictional boundaries of said 
Authority Having Jurisdiction. An alternative engineered 
design so approved shall not be considered as in accor- 
dance with the requirements, intent, or both of this code 
for a purpose other than that granted by the Authority 
Having Jurisdiction. 

301.4.5 Design Review. The Authority Having Jurisdic- 
tion shall have the authority to require testing of the alter- 
native engineered design in accordance to Section 
301.4.6, including the authority to require an independ- 
ent review of the design documents by a registered pro- 
fessional engineer selected by the Authority Having 
Jurisdiction and at the expense of the applicant. 

301.4.6 Inspection and Testing. The alternative engi- 
neered design shall be tested and inspected in accordance 
with the submitted testing and inspection plan and the 
requirements of this code. 

|| 301.5 One- and Two-Family Dwellings. [HCD 1] The pro- 
visions contained in this code shall not apply to one and two- 
family dwelling private sewage disposal systems and 
minimum plumbing facilities when alternate facilities or 
installations have been approved by the local health author- 
ity, provided that such alternative facilities or installations 
provide substantially equivalent or greater protection to 
health and safety. 



302.0 Iron Pipe Size (IPS) Pipe. 

302.1 General. Iron, steel, brass, and copper pipe shall be 
standard-weight iron pipe size (IPS) pipe. 

303.0 Disposal of Liquid Waste. 

303.1 General. It shall be unlawful for a person to cause, suf- 
fer, or permit the disposal of sewage, human excrement, or 
other liquid wastes, in a place or manner, except through and 
by means of an approved drainage system, installed and main- 
tained in accordance with the provisions of this code. 
Exception: [HCD 1] Limited-density owner-built rural 
dwellings. A water closet shall not be required when an alter- 
nate system is provided and has been approved by the local 
health official. Where an alternative to the water closet is 
installed, a system for the disposal or treatment of graywater 
shall be provided to the dwelling. Graywater systems shall be 
designed according to water availability, use and discharge. 
The design, use and maintenance standards of such systems 
shall be the prerogative of the local health official 

304.0 Connections to Plumbing System Required. 

304.1 General. Plumbing fixtures, drains, appurtenances, and 
appliances, used to receive or discharge liquid wastes or 
sewage, shall be connected properly to the drainage system of 
the building or premises, in accordance with the requirements 
of this code. 

Exception: [HCD I] Limited-density owner-built rural 
dwellings. Where conventional plumbing, in all or in part, is 
installed within the structure, it shall be installed in accor- 
dance with the provisions of this code. Alternative materials 
and methods shall be permitted provided that the design com- 
plies with the intent of the code, and that such alternatives 
shall perform to protect health and safety for the intended 
purpose. 

305.0 Damage to Drainage System or Public Sewer. 

305.1 Unlawful Practices. It shall be unlawful for a person 
to deposit, by any means whatsoever, into a plumbing fixture, 
floor drain, interceptor, sump, receptor, or device, which is 
connected to a drainage system, public sewer, private sewer, 
septic tank, or cesspool, any ashes; cinders; solids; rags; 
inflammable, poisonous, or explosive liquids or gases; oils; 
grease; or any other thing whatsoever that is capable of caus- 
ing damage to the drainage system or public sewer. 

306.0 Industrial Wastes. 

306.1 Detrimental Wastes. Wastes detrimental to the public 
sewer system or detrimental to the functioning of the sewage 
treatment plant shall be treated and disposed of as found nec- 
essary and directed by the Authority Having Jurisdiction. 

306.2 Safe Discharge. Sewage or other waste from a plumb- 
ing system that is capable of being deleterious to surface or 
subsurface waters shall not be discharged into the ground or 
into a waterway unless it has first been rendered safe by some 
acceptable form of treatment in accordance with the Author- 
ity Having Jurisdiction. 



44 



JANUARY 1,2014 ERRATA 
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GENERAL REGULATIONS 



307.0 Location. 

307.1 System. Except as otherwise provided in this code, no 
plumbing system, drainage system, building sewer, private 
sewage disposal system, or parts thereof shall be located in a 
lot other than the lot that is the site of the building, structure, 
or premises served by such facilities. 

307.2 Ownership. No subdivision, sale, or transfer of own- 
ership of existing property shall be made in such manner that 
the area, clearance, and access requirements of this code are 
decreased. 

308.0 Improper Location. 

308.1 General. Piping, fixtures, or equipment shall not be so 
located as to interfere with the normal use thereof or with the 
normal operation and use of windows, doors, or other 
required facilities. 

309.0 Workmanship. 

309.1 Engineering Practices. Design, construction, and 
workmanship shall be in accordance with accepted engineer- 
ing practices and shall be of such character as to secure the 
results sought to be obtained by this code. 

309.2 Concealing Imperfections. It is unlawful to conceal 
cracks, holes, or other imperfections in materials by welding, 
brazing, or soldering or by using therein or thereon a paint, 
wax, tar, solvent cement, or other leak-sealing or repair agent. 

309.3 Burred Ends. Burred ends of pipe and tubing shall be 
reamed to the full bore of the pipe or rube, and chips shall be 
removed. 

309.4 Installation Practices. Plumbing systems shall be 
installed in a manner that is in accordance with this code, 

[applicable standards, and the manufacturer's installation 
I instructions. 

310.0 Prohibited Fittings and Practices. 

310.1 Fittings. No double hub fitting, single or double tee 
branch, single or double tapped tee branch, side inlet quarter 
bend, running thread, band, or saddle shall be used as a 
drainage fitting, except that a double hub sanitary tapped tee 
shall be permitted to be used on a vertical line as a fixture 
connection. 

310.2 Drainage and Vent Piping. No drainage or vent pip- 
ing shall be drilled and tapped for the purpose of making con- 
nections thereto, and no cast-iron soil pipe shall be threaded. 

310.3 Waste Connection. No waste connection shall be made 
to a closet bend or stub of a water closet or similar fixture. 

310.4 Use of Vent and Waste Pipes. Except as hereinafter pro- 
vided in Section 908.0, Section 909.0, and Section 910.0, no 
vent pipe shall be used as a soil or waste pipe, nor shall a soil 
or waste pipe be used as a vent. Also, single-stack drainage and 
venting systems with unvented branch lines are prohibited. 

310.5 Obstruction of Flow. No fitting, fixture and piping 
connection, appliance, device, or method of installation that 
obstructs or retards the flow of water, wastes, sewage, or air 
in the drainage or venting systems, in an amount exceeding 
the normal frictional resistance to flow, shall be used unless 



it is indicated as acceptable in this code or is approved in 
accordance with Section 301.1 of this code. The enlargement 
of a 3 inch (76 mm) closet bend or stub to 4 inches (102 mm) 
shall not be considered an obstruction. 

310.6 Dissimilar Metals. Except for necessary valves, where 
inter-membering or mixing of dissimilar metals occurs, the 
point of connection shall be confined to exposed or accessi- 
ble locations. 

310.7 Direction of Flow. Valves, pipes, and fittings shall be 
installed in correct relationship to the direction of flow. 

310.8 Screwed Fittings. Screwed fittings shall beABS, cast- 
iron, copper, copper alloy, malleable iron, PVC, steel, or other 
approved materials. Threads shall be tapped out of solid metal 
or molded in solid ABS or PVC. 

310.9 fOSHPD 1,2,3 & 4] Drainage piping over operating 
and delivery rooms, nurseries, food preparation centers, 
food-serving facilities, food storage areas, and other sensi- 
tive areas shall be kept to a minimum and shall not be 
exposed. Special precautions shall be taken to protect these 
areas from possible leakage from necessary overhead 
drainage piping systems. Piping over switchboards, panel 
boards, and motor control centers are subject to restrictions 
of the California Electrical Code where applicable. 

310.10 fOSHPD 1,3 & 4] Floor drains shall not be installed 
in operating and delivery rooms. Floor drains with self-prim- 
ing traps may be installed in cystoscopic rooms. 

310.11 fSFM] For applications listed in Section 111 regu- 
lated by the Office of the State Fire Marshal, plastic piping 
shall not be exposed as a portion of the interior room finish 
in a building or structure if the piping has aflame-spread rat- 
ing exceeding 75 when tested in accordance with ASTME 84- 
77a, "Test for Surface Burning Characteristics of Building 
Materials. " 

310.12 fOSHPD 1, 2 & 4] Services/Systems and Utilities. 

Refer to Section 1224.4.1, California Building Code. 

311.0 Independent Systems. 

311.1 General. The drainage system of each new building 
and of new work installed in an existing building shall be sep- 
arate and independent from that of any other building, and, 
where available, every building shall have an independent 
connection with a public or private sewer. 

Exception: Where one building stands in the rear of another 
building on an interior lot, and no private sewer is available or 
can be constructed to the rear building through an adjoining 
court, yard, or driveway, the building drain from the front build- 
ing shall be permitted to be extended to the rear building. 

312.0 Protection of Piping, Materials, and Structures. 

312.1 General. Piping passing under or through walls shall 
be protected from breakage. Piping passing through or under 
cinders or other corrosive materials shall be protected from 
external corrosion in an approved manner. Approved provi- 
sions shall be made for expansion of hot water piping. Voids 
around piping passing through concrete floors on the ground 
shall be sealed. 



2013 CALIFORNIA PLUMBING CODE 



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43 



GENERAL REGULATIONS 



31 2.2 Installation. Piping in connection with a plumbing sys- 
tem shall be so installed that piping or connections will not be 
subject to undue strains or stresses, and provisions shall be 
made for expansion, contraction, and structural settlement. 
No plumbing piping shall be directly embedded in concrete or 
masonry. No structural member shall be seriously weakened 
or impaired by cutting, notching, or otherwise, as defined in 
the building code. 

312.3 Building Sewer and Drainage Piping. No building 
sewer or other drainage piping or part thereof, constructed of 
materials other than those approved for use under or within a 
building, shall be installed under or within 2 feet (610 mm) of 
a building or structure, or less than 1 foot (305 mm) below the 
surface of the ground. 

312.4 Corrosion, Erosion, and Mechanical Damage. Piping 
subject to corrosion, erosion, or mechanical damage shall be 
protected in an approved manner. 

312.5 Protectively Coated Pipe. Protectively coated pipe 
shall be inspected and tested, and a visible void, damage, or 
imperfection to the pipe coating shall be repaired in accor- 
dance with Section 312.0. 

312.6 Freezing Protection. No water, soil, or waste pipe shall 
be installed or permitted outside of a building or in an exte- 
rior wall unless, where necessary, adequate provision is made 
to protect such pipe from freezing. 

312.7 Fire-Resistant Construction. Piping penetrations of 
fire-resistance-rated walls, partitions, floors, floor/ceiling 
assemblies, roof/ceiling assemblies, or shaft enclosures shall 
be protected in accordance with the requirements of the Cal- 
ifornia Building Code. 

31 2 .8 Waterproofing of Openings. Joints at the roof around 
pipes, ducts, or other appurtenances shall be made watertight 
by the use of lead, copper, galvanized iron, or other approved 
flashings or flashing material. Exterior wall openings shall be 
made watertight. Counterflashing shall not restrict the 
required internal cross-sectional area of the vent. 

312.9 Steel Nail Plates. Plastic and copper piping penetrat- 
ing framing members to within 1 inch (25.4 mm) of the 
exposed framing shall be protected by steel nail plates not 
less than No. 1 8 gauge (0.0478 inches) ( 1 .2 mm) in thickness. 
The steel nail plate shall extend along the framing member 
not less than V/i inches (38 mm) beyond the outside diame- 
ter of the pipe or tubing. 

Exception: See Section 1210.3.3. 

312.10 Sleeves. Sleeves shall be provided to protect piping 
through concrete and masonry walls and concrete floors. 
Exception: Sleeves shall not be required where openings are 
drilled or bored. 

312.10.1 Building Loads. Piping through concrete or 
masonry walls shall not be subject to a load from build- 
ing construction. 

312.10.2 Exterior Walls. In exterior walls, annular space 
between sleeves and pipes shall be sealed and made 
watertight, as approved by the Authority Having Juris- 
diction. A penetration through fire-resistive construction 
shall be in accordance with Section 312.7. 

312.10.3 Firewalls. A pipe sleeve through a firewall shall 
have the space around the pipe completely sealed with 



an approved fire-resistive material in accordance with 
other codes. 

312.11 Structural Members. A structural member weakened 
or impaired by cutting, notching, or otherwise shall be rein- 
forced, repaired, or replaced so as to be left in a safe structural 
condition in accordance with the requirements of the building 
code. 

312.12 Rodentproofing. Strainer plates on drain inlets shall 
be designed and installed so that no opening exceeds Vi of an 
inch (12.7 mm) in the least dimension. 

312.12.1 Meter Boxes. Meter boxes shall be constructed 
in such a manner that rats cannot enter a building by fol- 
lowing the service pipes from the box into the building. 

312.12.2 Metal Collars. In or on buildings where open- 
ings have been made in walls, floors, or ceilings for the 
passage of pipes, such openings shall be closed and pro- 
tected by the installation of approved metal collars 
securely fastened to the adjoining structure. 

312.12.3 Tub Waste Openings. Tub waste openings in 
framed construction to crawl spaces at or below the first 
floor shall be protected by the installation of approved 
metal collars or metal screen securely fastened to the 
adjoining structure with no opening exceeding Vi of an 
inch (12.7 mm) in the least dimension. 

313.0 Hangers and Supports. 

313.1 Suspended Piping. Suspended piping shall be sup- 
ported at intervals not to exceed those shown in Table 313.1. 

313.2 Piping Support. Piping shall be supported in such a 
manner as to maintain its alignment and prevent sagging. 

313.3 Underground Piping. Piping in the ground shall be 
laid on a firm bed for its entire length; where other support is 
otherwise provided, it shall be approved in accordance with 
Section 301 .0 of this code. 

313.4 Strength. Hangers and anchors shall be of sufficient 
strength to support the weight of the pipe and its contents. 
Piping shall be isolated from incompatible materials. 

313.5 Piping, Fixtures, Appliances, and Appurtenances. 

Piping, fixtures, appliances, and appurtenances shall be ade- 
quately supported in accordance with this code, the manu- 
facturer's installation instructions, and in accordance with the 
Authority Having Jurisdiction. 

313.6 Hanger Rod Sizes. Hanger rod sizes shall be no 
smaller than those shown in Table 313.6. 



TABLE 313.6 
HANGER ROD SIZES 



PIPE AND TUBE SIZE 


ROD SIZE 


(inches) 


(inches) 


'/2-4 


3 /s 


5-8 


X A 


10-12 





For SI units: 1 inch = 25.4 mm 



313.7 Gas Piping. Gas piping shall be supported by metal 
straps or hooks at intervals not to exceed those shown in Table 
1210.2.4.1. 



46 



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GENERAL REGULATIONS 



313.8 fOSHPD /, 2, 3 & 4] Refer to Title 24, Part 2 of the 
California Building Code for seismic anchorage and bracing 
requirements and accommodations for building displace- 
ments. 

314.0 Trenching, Excavation, and Backfill. 

314.1 Trenches. Trenches deeper than the footing of a build- 
ing or structure and paralleling the same shall be not less than 
45 degrees (0.79 rad) therefrom, or as approved in accordance 
with Section 301 .0 of this code. 

314.2 Tunneling and Driving. Tunneling and driving shall be 
permitted to be done in yards, courts, or driveways of a build- 
ing site. Where sufficient depth is available to permit, tunnels 
shall be permitted to be used between open-cut trenches. Tun- 
nels shall have a clear height of 2 feet (610 mm) above the 
pipe and shall be limited in length to one-half the depth of the 
trench, with a maximum length of 8 feet (2438 mm). Where 
pipes are driven, the drive pipe shall be not less than one size 
larger than the pipe to be laid. 

314.3 Open Trenches. Excavations required to be made for 
the installation of a building drainage system or part thereof, 
within the walls of a building, shall be open trench work and 
shall be kept open until the piping has been inspected, tested, 
and accepted. 

314.4 Excavations. Excavations shall be completely back- 
filled as soon after inspection as practicable. Precaution shall 
be taken to ensure compactness of backfill around piping 
without damage to such piping. Trenches shall be backfilled 
in thin layers to 12 inches (305 mm) above the top of the pip- 
ing with clean earth, which shall not contain stones, boulders, 
cinderfill, frozen earth, construction debris, or other materi- 
als that will damage or break the piping or cause corrosive 
action. Mechanical devices such as bulldozers, graders, etc., 
shall be permitted to then be used to complete backfill to 
grade. Fill shall be properly compacted. Precautions shall be 
taken to ensure permanent stability for pipe laid in filled or 
made ground. 

315.0 Joints and Connections. 

315.1 Unions. Approved unions shall be permitted to be used 
in drainage piping where accessibly located in the trap seal or 
between a fixture and its trap in the vent system, except 
underground or in wet vents, at a point in the water supply 
system, and in gas piping as permitted by Section 121 1.5. 

315.2 Prohibited Joints and Connections. A fitting or con- 
nection that has an enlargement, chamber, or recess with a 
ledge, shoulder, or reduction of pipe area that offers an 
obstruction to flow through the drain shall be prohibited. 

315.2.1 Obstruction. No fitting or connection that offers 
abnormal obstruction to flow shall be used. The enlarge- 
ment of a 3 inch (76 mm) closet bend or stub to 4 inches 
(102 mm) shall not be considered an obstruction. 

316.0 Increasers and Reducers. 

316.1 General. Where different sizes of pipes and fittings are 
to be connected, the proper size increasers or reducers or 
reducing fittings shall be used between the two sizes. Brass or 



cast-iron body cleanouts shall not be used as a reducer or 
adapter from cast-iron drainage pipe to iron pipe size (IPS) 
pipe. 

317.0 Food-Handling Establishments. 

317.1 General. Food or drink shall not be stored, prepared, or 
displayed beneath soil or drain pipes, unless those areas are 
protected against leakage or condensation from such pipes 
reaching the food or drink as described below. Where build- 
ing design requires that soil or drain pipes be located over 
such areas, the installation shall be made with the least pos- 
sible number of joints and shall be installed so as to connect 
to the nearest adequately sized vertical stack with the provi- 
sions as follows: 

(1) Openings through floors over such areas shall be sealed 
watertight to the floor construction. 

(2) Floor and shower drains installed above such areas shall 
be equipped with integral seepage pans. 

(3) Soil or drain pipes shall be of an approved material as 
listed in Table 1401 . 1 and Section 701 . 1 . Materials shall 
comply with established standards. Cleanouts shall be 
extended through the floor construction above. 

(4) Piping subject to operation at temperatures that will form 
condensation on the exterior of the pipe shall be ther- 
mally insulated. 

(5) Where pipes are installed in ceilings above such areas, 
the ceiling shall be of the removable type, or shall be pro- 
vided with access panels in order to form a ready access 
for inspection of piping. 

318.0 Test Gauges. 

318.1 General. Tests in accordance with this code, which are 
performed utilizing dial gauges, shall be limited to gauges 
having the following pressure graduations or incrementations. 

318.2 Pressure Tests (10 psi or less). Required pressure tests 
of 1 pounds-force per square inch (psi) (69 kPa) or less shall 
be performed with gauges of 0, 10 psi (0.69 kPa) incrementa- 
tion or less. 

318.3 Pressure Tests (greater than 10 psi to 100 psi). 

Required pressure tests exceeding 10 psi (69 kPa) but less 
than or equal to 100 psi (689 kPa) shall be performed with 
gauges of 1 psi (7 kPa) incrementation or less. 

318.4 Pressure Tests (exceeding 100 psi). Required pressure 
tests exceeding 100 psi (689 kPa) shall be performed with 
gauges incremented for 2 percent or less of the required test 
pressure. 

318.5 Pressure Range. Test gauges shall have a pressure 
range not exceeding twice the test pressure applied. 

319.0 [Not permitted for OSHPD 1,2,3 & 4] Medical Gas 
and Vacuum Systems. 

319.1 General. Such piping shall be installed, tested, and ver- 
ified in accordance with the applicable standards referenced 
in Table 1401.1 and the requirements of Chapter 13. The 
Authority Having Jurisdiction shall require evidence of the 
competency of the installers and verifiers. 



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GENERAL REGULATIONS 



TABLE 313.1 
HANGERS AND SUPPORTS 



MATERIALS 


TYPES OF JOINTS 


HORIZONTAL 


VERTICAL 


Cast 


Lead and Oakum 


S ippt pYrpnt 1 fpft u/nprp 

*J ItCL, CAttpi 1 \J 1CCI WllClC 

10 foot lengths are installed 1, 2 ' 3 


Base and each floor, 
not to exceed 15 feet 


Compression Gasket 


Fvprv nthpr ioint iitiIpqq nvpr 

1 j V w 1 y ll/llll, L4111^30 UVwl 

4 feet then support each joint 1, 2 ' 3 


case dnu eacn noor, 
not to exceed 1 5 feet 


Cast-Iron Hubless 


Shielded Coupling 


Fvptv nthpr inint iitiIp*;^ nv^r 

L V vl y Viill^l J vllll^ UlllVOD U Vvl 

4 feet then support each joint 1,2,3,4 


Base and each floor, 
not to exceed 1 5 feet 


Copper Tube and Pipe 


Soldered or Brazed 


1 Vi inches and smaller, 6 feet; 
2 inches and larger, 1 feet 


Each floor, not to exceed 1 feet 5 


Steel and Brass Pipe for 
water or u w v 


Threaded or Welded 


Va inch and smaller, 10 feet; 
1 inch and larger, 12 feet 


Every other floor, 
not to exceed 25 feet 5 


OlCGI, Dldab, allU 1 illllCU 

Copper Pipe for Gas 


Threaded or Welded 


'A inpH f\ fppf" 3/j irifh anH 1 inch 
/i 1111,11, u icci, /4 iiiv.ii. Linn i iiiv-ii, 

8 feet; 1 Va inches and larger, 10 feet 


v-> inph f\ fppf' */a inph nnH 1 inpVi 

/ 2. Illvtl^ \y ICLl, /4 lllLLl til 111 1 lilLll, 

8 feet; 1 Va inches every floor level 


bcneauie 4U rvt ana 
ABS DWV 


Solvent Cemented 


All sizes, 4 feet; allow 
for expansion every 30 feet 3,6 


Base and each floor; provide 
mid-story guides; provide for 
expansion every 30 feet 6 


CPVC 


Solvent Cemented 


1 inch and smaller, 3 feet; 
1 Va inches and larger, 4 feet 


Base and each floor; 
provide mid-story guides 6 


Lead 


Wiped or Burned 


Continuous Support 


Not to exceed 4 feet 


Copper 


Mechanical 


In accordance with standards acceptable to the Authority Having Jurisdiction 


Steel and Brass 


Mechanical 


In accordance with standards acceptable to the Authority Having Jurisdiction 


PEX 


Cold Expansion, Insert 
and Compression 


1 inch and smaller, 32 inches; 
1 Va inches and larger, 4 feet 


Base and each floor; 
provide mid-story guides 


PEX-AL-PEX 


Metal Insert and Metal Compression 


Vi inch *\ 

Va inch V All sizes 98 inches 
1 inch J 


Base and each floor; 
provide mid-story guides 


PE-AL-PE 


Metal Insert and Metal Compression 


Vi inch ~\ 

Va inch \ All sizes 98 inches 
1 inch ) 


Base and each floor; 
provide mid-story guides 


Polypropylene (PP ) 


Fusion weld (socket butt, 
saddle, electro fusion), threaded 
(metal threads only), or mechanical 


1 inch and smaller, 32 inches; 
1 Va inches and larger, 4 feet 


Base and each floor; 
provide mid-story guides 



For SI units: 1 inch = 25.4 mm, 1 foot = 304.8 mm 
Notes: 



1 Support adjacent to joint, not to exceed 1 8 inches (457 mm). 

2 Brace not to exceed 40 foot (12 192 mm) intervals to prevent horizontal movement. 

3 Support at each horizontal branch connection. 

4 Hangers shall not be placed on the coupling. 

5 Vertical water lines shall be permitted to be supported in accordance with recognized engineering principles with regard to expansion and contraction, 
where first approved by the Authority Having Jurisdiction. 

6 See the appropriate IAPMO Installation Standard for expansion and other special requirements. 



^0 



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CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 4 - PLUMBING FIXTURES AND FIXTURE FITTINGS 

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 



Adopting Agency 


BSC 




HCD 


DSA 


OSHPD 


BSCC 




AG'] 


DWR 


CA 


SL 


SLC 


1 


2 


1-AC 


AC 


ss 


ss/cc 


1 


2 


3 


4 


Adopt Entire Chapter 








































Adopt Entire Chapter as amended 
(amended sections listed below) 


X 




X 


X 






X 


x I X 


X 


X 


X 




X 


X 




X 






Adopt only those sections that are 
listed below 

{^hanfpr/Sipctinn 










X 


x 














X 














Tslrvtp T TnHpr Titlp 












x 




























40^ 9 & suhspctinns 






X 


X 
































401 1 1 fir Qiih^prtinn*; 






X 


X 
































403.6 






x 


































403.7 






x 


































403.8 






x 


X 
































408.2 






x 


































40ft S Fxcention 1 










X 






























408 fS Fxcpntion 1 










X 






























413.3 


















X 


x 


X 


x 
















415.1 






X 


































421.1 










X 






























422.2 








t 
































422 2 1 & Fxcention 


















X 


X 


x 


X 
















422.4 






t 


t 
































422.5 






t 


t 
































422.6 


































X 






422.7 


































X 






422.8 








































422.9 




























X 












Table A 


X 












X 


X 
























Table 422.1 


X 




X 


X 


X 


X 


X 


X 


X 


X 


X 


X 
















Table 422.1 Minimum Plumbing 
Facilities (Footnote-4) 














X 


X 
























Table 4-2 


















X 


X 


X 


X 
















Table 4-3 


X 




























X 










Table 4-4 


X 


























X 













The state agency does not adopt sections identified by the following symbol: f 



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2013 CALIFORNIA PLUMBING CODE 



CHAPTER 4 



PLUMBING FIXTURES AND FIXTURE FITTINGS 

Note: In addition the requirements of this chapter, which provide access to, or egress from, buildings or facilities where accessibil- 
ity is required for applications listed in Section 109, of the California Building Code, regulated by the Division of the State Archi- 
tect-Access Compliance shall also comply with Chapter 11 A for public housing and Chapter 1 IB for public accommodations under 
authority cited by Gov Code §4450 and in reference cited by Gov. Code §4450 through 4461, 12955. 1 and H&SC §18949. 1, 19952 
through 19959. 



401.0 Materials - General Requirements. 

401.1 Quality of Fixtures. Plumbing fixtures shall be con- 
structed of dense, durable, non-absorbent materials and shall 
have smooth, impervious surfaces, free from unnecessary 
concealed fouling surfaces. Except as permitted elsewhere in 
this code, fixtures shall comply with the quality and design of 
nationally recognized applicable standards referenced in 
Table 1401.1. 

401.2 Lead. Sheet lead shall be not less than the following: 

For safe pans not less than 4 pounds per square foot (lb/ft 2 ) 
(19 kg/m 2 ) or Vie of an inch (1.6 mm) thick. (See Table 
1401.1) 

402.0 Installation. 

402.1 Cleaning. Plumbing fixtures shall be installed in a 
| manner to afford easy access for repairs and cleaning. Pipes 

from fixtures shall be run to the nearest wall. 

402.2 Joints. Where a fixture comes in contact with the wall 
or floor, the joint between the fixture and the wall or floor 
shall be made watertight. 

402.3 Securing Fixtures. Floor-outlet or floor-mounted fix- 
tures shall be rigidly secured to the drainage connection and 
to the floor, where so designed, by screws or bolts of copper, 
brass, or other equally corrosion-resistant material, 

402.4 Wall-Hung Fixtures. Wall-hung fixtures shall be 
rigidly supported by metal supporting members so that no 
strain is transmitted to the connections. Flush tanks and sim- 
ilar appurtenances shall be secured by approved non-corro- 
sive screws or bolts. 

402.5 Setting. Fixtures shall be set level and in proper align- 
ment with reference to adjacent walls. No water closet or 
bidet shall be set closer than 1 5 inches (38 1 mm) from its cen- 
ter to a side wall or obstruction nor closer than 30 inches (762 
mm) center to center to a similar fixture. The clear space in 
front of a water closet or bidet shall be not less than 24 inches 
(610 mm). No urinal shall be set closer than 12 inches (305 
mm) from its center to a side wall or partition nor closer than 
24 inches (610 mm) center to center. 

Exception: The installation of paper dispensers or accessi- 
bility grab bars shall not be considered obstructions. 

I 402.6 Flanged Fixture Connections. Fixture connections 
between drainage pipes and water closets, floor outlet service 
sinks and urinals shall be made by means of approved brass, 
hard lead, ABS, PVC, or iron flanges caulked, soldered, sol- 
vent cemented; rubber compression gaskets; or screwed to 
the drainage pipe. The connection shall be bolted with an 



approved gasket, washer, or setting compound between the 
fixture and the connection. The bottom of the flange shall be 
set on an approved firm base. 

Wall-mounted water closet fixtures shall be securely | 
bolted to an approved carrier fitting. The connecting pipe 
between the carrier fitting and the fixture shall be an approved 
material and designed to accommodate an adequately sized 
gasket. Gasket material shall be neoprene, felt, or similar 
approved types. 

402.6.1 Closet Rings (Closet Flanges). Closet rings 
(closet flanges) for water closets or similar fixtures shall 
be of an approved type and shall be bronze, copper, hard 
lead, cast-iron, galvanized malleable iron, ABS, PVC, or 
other approved materials. Each such closet ring (closet 
flange) shall be approximately 7 inches (178 mm) in 
diameter and, where installed, shall, together with the 
soil pipe, present a 1 Vi inch (38 mm) wide flange or face 
to receive the fixture gasket or closet seal. 

Caulked-on closet rings (closet flanges) shall be not 
less than Va of an inch (6.4 mm) thick and not less than 2 
inches (51 mm) in overall depth. 

Closet rings (closet flanges) shall be burned or sol- 
dered to lead bends or stubs, shall be caulked to cast-iron 
soil pipe, shall be solvent cemented to ABS and PVC, 
and shall be screwed or fastened in an approved manner 
to other materials. 

Closet bends or stubs shall be cut off so as to pres- 1 
ent a smooth surface even with the top of the closet ring 
before rough inspection is called. 

Closet rings (closet flanges) shall be adequately 
designed and secured to support fixtures connected 
thereto, 

402.6.2 Securing Closet Flanges. Closet screws, bolts, 
washers, and similar fasteners shall be of brass, copper, 
or other listed, equally corrosion-resistant materials. 
Screws and bolts shall be of a size and number to prop- 
erly support the fixture installed. 

402.6.3 Securing Floor-Mounted, Back-Outlet Water 
Closet Bowls. Floor-mounted, back-outlet water closet 
bowls shall be set level with an angle of 90 degrees (1.57 
rad) between the floor and wall at the centerline of the fix- 
ture outlet. The floor and wall shall have a flat mounting 
surface not less than 5 inches ( 1 27 mm) to the right and left 
of the fixture outlet centerline. The fixture shall be secured 
to the wall outlet flange or drainage connection and to the 
floor by corrosion-resistant screws or bolts. The closet 
flange shall be secured to a firm base. 



2013 CALIFORNIA PLUMBING CODE 



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PLUMBING FIXTURES AND FIXTURE FITTINGS 



Where floor-mounted, back-outlet water closets are 
used, the soil pipe shall be not less than 3 inches (80 mm) 
in diameter. Offset, eccentric, or reducing floor flanges 
shall not be used. 

1 402.7 Accessible Plumbing Facilities. Where accessible 
| facilities are required in applicable building regulations, the 
facilities shall be installed in accordance with those regula- 
tions. [HCD I- AC] For specific requirements regarding 
accommodations for persons with disabilities, see California 
|| Code of Regulations, Title 24, Part 2, Chapter 11 A. 

402.8 Supply Fittings. The supply lines and fittings for every 
plumbing fixture shall be so installed as to prevent backflow 
in accordance with Chapter 6. 

402.9 Installation. Water-conserving fixtures shall be 
installed in strict accordance with the manufacturer's instal- 
lation instructions to maintain their rated performance. 

402.10 Design and Installation of Plumbing Fixtures. 

Plumbing fixtures shall be installed such that fixture fittings 
shall be in accordance with the backflow prevention require- 
ments of ASME A112.18.1 /CSA B125.1. These requirements 
shall not be compromised by the designated fixture fitting 
mounting surface. 

402.11 Slip Joint Connections. Fixtures having concealed 
slip joint connections shall be provided with an access panel 
or utility space not less than 12 inches (305 mm) in its least 
dimension and so arranged without obstructions as to make 
such connections accessible for inspection and repair. 

402.12 Future Fixtures. Where provisions are made for the 
future installation of fixtures, those provided for shall be con- 
sidered in determining the required sizes of drain pipes. Con- 
struction for future installations shall be terminated with a 
plugged fitting or fittings. Where the plugged fitting is at the 
point where the trap of a fixture is installed, the plumbing sys- 
tem for such fixture shall be complete and be in accordance 
with the plumbing requirements of this code. 

403.0 Water-Conserving Fixtures and Fittings. 

403.1 Flush Volumes. Flush volumes for low-consumption 
and water-saver water closets and urinals shall comply with 
applicable standards referenced in Table 1401.1. 

403.2 Water Closets. Water closets, either flush tank, 
flushometer tank, or flushometer valve operated, shall have an 
average consumption not to exceed 1.6 gallons (6.0 Lpf) of 
water per flush. 

403.2.1 Water Closets on or after July 1, 2011 [HCD 1 

& HCD 2] Water closets, either flush tank, flushometer 
tank, or flushometer valve operated installed on or after 
July L 2011, shall have an effective flush volume in com- 
pliance with the following: 

(1) Single Flush Toilets - The effective flush volume 
shall not exceed 1.28 gallons (4.8 liters) when tested 
in accordance with ASME A112.19.2, Standard for 
Vitreous China Plumbing Fixtures and Hydraulic Fix- 
tures Requiremen ts for Water Closets and Urinals 

(2) Dual Flush Toilets - The effective flush volume shall 
not exceed 1.28 gallons (4.8 liters) when tested in 
accordance with ASME A 112. 1 9. 2, Standard for Vitre- 



ous China Plumbing Fixtures and Hydraulic Fixtures 
Requirements for Water Closets and Urinals, and 
ASMEA112. 19.14, Standard for Six-Liter Water Clos- 
ets Equipped with a Dual Flushing Device. 

403.2.1.1 Performance [HCD 1 & HCD 2] Water 
closets installed on or after Jidy 2, 2011, shall meet 
or exceed the minimum performance criteria devel- 
oped for certification of high-efficiency toilets under 
the WaterSense program sponsored by the U.S. Envi- 
ronmental Protection Agency (EPA). 

403.3 Urinals. Urinals shall have an average water con- 
sumption not to exceed 0.5 gallons (2 L) of water per flush. |j 

403.3.1 Nonwater Urinals. [Not adopted for OSHPD 

1, 2, 3, & 4] Nonwater urinals shall be listed and comply 
with the applicable standards referenced in Table 1401.1. 
Nonwater urinals shall have a barrier liquid sealant to 
maintain a trap seal. Nonwater urinals shall permit the 
uninhibited flow of waste through the urinal to the sani- 
tary drainage system. Nonwater urinals shall be cleaned 
and maintained in accordance with the manufacturer's 
instructions after installation. Where nonwater urinals are 
installed they shall have a water distribution line rough- 
in to the urinal location to allow for the installation of an 
approved backflow prevention device in the event of a 
retrofit. For additional information, see Health andM 
Safety Code Section 1 7921 A. 

403.3. LI Nonwater Urinal Drainage Connections. 

Where nonwater urinals are installed, not less than 
one water supplied fixture rated at not less than I 
drainage fixture unit (DFU) shall be installed 
upstream on the same drain line to facilitate drain 
line flow and rinsing. 

403.4 Metered Faucets. Self-closing or self-closing metering 
faucets shall be installed on lavatories intended to serve the 
transient public, such as those in, but not limited to, service 
stations, train stations, airports, restaurants, and convention 
halls. Metered faucets shall deliver a maximum of 0.25 gal- 
lons (0.95 L) of water per use. 

403.5 Pre-Rinse Spray Valve. Commercial food service pre- 
rinse spray valves shall have a maximum flow rate of 1 .6 gal- 
lons per minute (gpm) at 60 pounds-force per square inch 
(psi) (6.0 L/m at 414 kPa) in accordance with ASME 
A112.18.1/CSAB125.1 and shall be equipped with an integral 
automatic shutoff. 

403.6 Kitchen Faucets. [HCD 1] The maximum flow rate of 
kitchen faucets shall not exceed 1.8 gallons (6.81 L) per 
minute at 60 psi Kitchen faucets may temporarily increase 
the flow above the maximum rate, but not to exceed 2.2 gal- 
lons (8.32 L) per minute at 60 psi, and must default to a max- 
imum flow rate of 1.8 gallons (6.81 L) per minute at 60 psi. 

Note: Where faucets meeting the maximum flow rate of 1.8 
gpm (6. 81 L) are unavailable, aerators or other means may 
be used to achieve reduction. 

403.7 Residential Lavatory Faucets. [HCD If The maximum 
flow rate of residential lavatory faucets shall not exceed 1.5 
gallons (5.68 L) per minute at 60 psi. The minimum flow rate 
of residential lavatory faucets shall not be less than 0.8 gal- 
lons (3.03 L) per minute at 20 psi. 



52 



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PLUMBING FIXTURES AND FIXTURE FITTINGS 



403,8 Lavatory Faucets in Common and Public Use Areas. 
[HCD 1 & HCD 2] The maximum flow rate of lavatory 
faucets, installed in common and public use areas (outside of 
dwellings or sleeping units) in residential buildings, shall not 
exceed 0.5 gallons (1.89 L) per minute at 60 psi. 

404.0 Overflows. 

404.1 General. Where a fixture is provided with an overflow, 
the waste shall be so arranged that the standing water in the 
fixture shall not rise in the overflow where the stopper is 
closed or remain in the overflow where the fixture is empty. 
The overflow pipe from a fixture shall be connected on the 
house or inlet side of the fixture trap, except that overflow on 
flush tanks shall be permitted to discharge into the water clos- 
ets or urinals served by them, but it shall be unlawful to con- 
nect such overflows with any other part of the drainage 
system. 

405.0 Strainers and Connections. 

405.1 Strainers. Plumbing fixtures, other than water closets 
and urinals, shall be equipped with approved strainers hav- 
ing an approved waterway area. Strainers serving shower 
drains shall have a waterway equivalent to the area of the tail- 
piece. 

405.2 Continuous Wastes. Continuous wastes and fixture 
tailpieces shall be constructed from the materials specified in 
Section 701.1 for drainage piping, provided, however, that 
such connections where exposed or accessible shall be per- 
mitted to be of seamless drawn brass not less than No. 20 B 
& S Gauge (0.032 inches) (0.8 mm). Each such tailpiece, con- 
tinuous waste, or waste and overflow shall be not less than 
V/i inches (40 mm) O.D. for sinks, dishwashers, laundry tubs, 
bathtubs, urinals, and similar fixtures, and not less than VA 
inches (32 mm) for lavatories, drinking fountains, and simi- 
lar small fixtures. 

406.0 Prohibited Fixtures. 

406.1. Prohibited Water Closets. Water closets having an 
invisible seal or an unventilated space or having walls which 
are not thoroughly washed at each discharge shall be prohib- 
ited. A water closet that might permit siphonage of the con- 
1 tents of the bowl back into the tank shall be prohibited. 

406.2 Prohibited Urinals. Trough urinals and urinals with 
an invisible seal shall be prohibited. 

406.3 Miscellaneous Fixtures. Fixed wooden, or tile wash 
trays or sinks for domestic use shall not be installed in a build- 
ing designed or used for human habitation. No sheet metal - 
lined wooden bathtub shall be installed or reconnected. No 
dry or chemical closet (toilet) shall be installed in a building 
used for human habitation, unless first approved by the Health 
Officer. 

407.0 Special Fixtures and Specialties. 

407.1 Water and Waste Connections. Baptisteries, orna- 
mental and lily ponds, aquaria, ornamental fountain basins, 
and similar fixtures and specialties requiring water, waste 



connections, or both shall be submitted for approval to the 
Authority Having Jurisdiction prior to installation. 

407.2 Special Use Sinks. Restaurant kitchen and other spe- 
cial use sinks shall be permitted to be made of approved-type 
bonderized and gal vanized sheet steel of not less than No. 16 
U.S. gauge (0.0625 inches) (1.6 mm). Sheet-metal plumbing 
fixtures shall be adequately designed, constructed, and braced 
in an approved manner to accomplish their intended purpose. 

407.3 Special Use Fixtures. Special use fixtures shall be 
made of one of the following: 

(1) Soapstone 

(2) Chemical stoneware 

(3) Copper-based alloy 

(4) Nickel-based alloy 

(5) Corrosion-resistant steel 

(6) Other materials suited for the intended use of the fixture 

407.4 Zinc Alloy Components. Zinc alloy components shall 
comply with applicable nationally recognized standards and 
shall be used in accordance with their listing. 

408.0 Showers. 

408.1 Application. Manufactured shower receptors shall 
comply with the applicable standards referenced in Table 
1401.1. 

408.2 Water Consumption. [HCD 1/ Showerheads shall 
have a maximum flow rate of 2.0 gallons (7.57 L) per minute 
measured at 80 psi and must comply with Division 4.3 of the 
California Green Building Standards Code (CALGreen). 

408.3 Individual Shower and Tub-Shower Combination 
Control Valves. Showers and tub-shower combinations shall 
be provided with individual control valves of the pressure 1 
balance, thermostatic, or combination pressure balance/ther- 
mos tatic mixing valve type that provide scald and thermal 
shock protection for the rated flow rate of the installed show- 
erhead. These valves shall be installed at the point of use and 
in accordance with ASSE 1016 or AS ME A 1 1 2. 1 8. 1 ICS A 
B 125.1. Gang showers, where supplied with a single tem- 
perature-controlled water supply pipe, shal l be controlled by 
a mixing valve that is in accordance with ASSE 1069. Han- 
dle position stops shall be provided on such valves and shall 
be adjusted per the manufacturer's instructions to deliver a 
maximum mixed water setting of 1 20°F (49°C). Water heater 
thermostats shall not be considered a suitable control for 
meeting this provision. 

408.4 Waste Outlet. Showers shall have a waste outlet and 
fixture tailpiece not less than 2 inches (50 mm) in diameter. 
Fixture tailpieces shall be constructed from the materials 
specified in Section 701. 1 for drainage piping. Strainers serv- 
ing shower drains shall have a waterway at least equivalent to 
the area of the tailpiece. 

408.5 Finished Curb or Threshold. Where a shower recep- 
tor has a finished dam, curb, or threshold it shall be not less I 
than 1 inch (25.4 mm) lower than the sides and back of such 
receptor. In no case shall a dam or threshold be less than 2 
inches (51 mm) or exceeding 9 inches (229 mm) in depth 
where measured from the top of the dam or threshold to the 



2013 CALIFORNIA PLUMBING CODE 



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PLUMBING FIXTURES AMD FIXTURE FITTINGS 



top of the drain. Each such receptor shall be provided with an 
integral nailing flange to be located where the receptor meets 
the vertical surface of the finished interior of the shower com- 
partment. The flange shall be watertight and extend vertically 
not less than 1 inch (25.4 mm) above the top of the sides of 
the receptor The fin ished floor of the receptor shall slope uni- 
formly from the sides towards the drain not less than ] A inch 
per foot (20.8 mm/m), nor more than Vi inch per foot (41.8 
mm/ in). 

Thresholds shal l be of sufficient width to accommodate 
a minimum 22 inch (559 mm) door. Shower doors shall open 
so as to maintain not less than a 22 inch (559 mm) unob- 
structed opening for egress. 

Exceptions: 

(1) Showers that are designed to be in accordance with the 
accessibility standards listed in Table 1401.1. [HCD 1- 

ACJ Specific requirements regarding accommodations 
for persons with disabilities are contained in California 
Code of Regulations, Title 24, Part 2, Chapter 11 A. Table 
140 LI does not contain the correct accessibility stan- 
dards for use in California. 

(2) A cast-iron shower receptor flange shall be not less than 
0.3 of an inch (7.62 mm) in height. 

(3) For flanges not used as a means of securing, the sealing 
flange shall be not less than 0.3 of an inch (7.62 mm) in 
height. 

408.6 Shower Compartments. Shower compartments, 
regardless of shape, shall have a minimum finished interior of 
1 024 square inches (0.6606 m 2 ) and shall also be capable of 
encompassing a 30 inch (762 mm) circle. The minimum 
required area and dimensions shall be measured at a height 
equal to the top of the threshold and at a point tangent to its 
center! ine. The area and dimensions shall be maintained to a 
point of not less than 70 inches (1778 mm) above the shower 
drain outlet with no protrusions other than the fixture valve or 
valves, shower head, soap dishes, shelves, and safety grab 
bars, or rai ls. Fold-down seats in accessible shower stalls shall 
be permitted to protrude into the 30 inch (762 mm) circle. 

Exceptions: 

II (1) Showers that are designed to comply with Chapter 11 A 
of the California Building Code. 

(2) The minimum required area and dimension shall not 
apply for a shower receptor having overall dimensions 
of not less than 30 inches (762 mm) in width and 60 
inches (1 524 mm) in length. 

(3) /HCD I -AC] Specific requirements regarding accom- 
modations for persons with disabilities are contained in 
California Code of Regulations, Title 24, Part 2, Chap- 

| ] ter 11 A. ICC A 11 7. ./, Standard for A ccessible and Usable 
Buildings and Facilities, does not contain the correct 
accessibility standards for use in California. 

1 408.7 Lining for Showers and Receptors. Shower receptors 
1 built on-site shall be watertight and shall be constructed from 
approved-type dense, nonabsorbent, and noncorrosive mate- 
rials. Each such receptor shall be adequately reinforced, shall 
be provided with an approved flanged floor drain designed to 



make a watertight joint in the floor, and shall have smooth, 
impervious, and durable surfaces. 

Shower receptors shall have the subfloor and rough side 
of walls to a height of not less than 3 inches (76 mm) above 
the top of the finished dam or threshold shal l be first lined 
with sheet plastic, lead, or copper, or shall be lined with other 
durable and watertight materials. Showers that are provided 
with a built in place, permanent seat or seating area that is 
located within the shower enclosure, shall be first lined with 
sheet plastic, lead, copper, or shall be lined with other durable 
and watertight materials that extend not less than 3 inches (76 
mm) above horizontal surfaces of the seat or the seating area. 

Lining materials shall be pitched l A inch per foot (20.8 
mm/m) to weep holes in the subdrain of a smooth and sol idl y 
formed subbase. Such lining materials shall extend upward 
on the rough jambs of the shower opening to a point not less 
than 3 inches (76 mm) above the horizontal surfaces of the 
seat or the seating area, the top of the finished dam or thresh- 
old and shall extend outward over the top of the permanent 
seat, permanent seating area, or rough threshold and be turned 
over and fastened on the outside face of both the permanent 
seat, permanent seating area, or rough threshold and the 
jambs. 

Nonmetallic shower subpans or linings shall be permit- 
ted to be built up on the job site of not less than three layers 
of standard grade 15 pound (6.8 kg) asphalt-impregnated 
roofing felt. The bottom layer shall be fitted to the formed 
subbase and each succeeding layer thoroughly hot-mopped 
to that below. Corners shall be carefully fitted and shall be 
made strong and watertight by folding or lapping, and each 
comer shall be reinforced with suitable webbing hot-mopped 
in place. 

Folds, laps, and reinforcing webbing shall extend not less 
than 4 inches (102 mm) in all directions from the corner, and 
webbing shall be of approved type and mesh, producing a ten- 
sile strength of not less than 50 lb/ft 2 (244 kg/m 2 ) in either 
direction. Nonmetallic shower subpans or linings shall be per- 
mitted to consist of multilayers of other approved equivalent 
materials suitably reinforced and carefully fitted in place on 
the job site as elsewhere required in this section. 

Linings shall be properly recessed and fastened to 
approved backing so as not to occupy the space required for 
the wall covering, and shall not be nailed or perforated at a 
point that is less than 1 inch (25.4 mm) above the finished 
dam or threshold. An approved-type subdrain shall be 
installed with a shower subpan or lining. Each such subdrain 
shall be of the type that sets flush with the subbase and shall 
be equipped with a clamping ring or other device to make a 
tight connection between the lining and the drain. The 
subdrain shall have weep holes into the waste line. The weep 
holes located in the subdrain clamping ring shall be protected 
from clogging. 

Shower lining materials shall comply with approved 
standards acceptable to the Authority Having Jurisdiction. 
Lead and copper subpans or linings shall be insulated from 
conducting substances other than their connecting drain by 
15 pound (6.8 kg) asphalt felt or its equivalent, and no lead 
pan or liner shall be constructed of material weighing less 



54 



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than 4 lb/ft 2 (19 kg/m 2 ). Copper pans or liners shall be not 
less than No. 24 B & S Gauge (0.02 inches) (0.51 mm). Joints 
in lead pans or liners shall be burned. Joints in copper pans or 
liners shall be soldered or brazed. Plastic pans shall not be 
coated with asphalt-based materials. 

408.7.1 Tests for Shower Receptors. Shower receptors 
shall be tested for watertightness by filling with water to 
the level of the rough threshold. The test plug shall be so 
placed that both upper and under sid es of the subpan shall 
be subjected to the test at the point where it is clamped 
to the drain. 

408.8 Public Shower Floors. Floors of public shower rooms 
shall have a nonskid surface and shall be drained in such a 
manner that wastewater from one bather shall not pass over 
areas occupied by other bathers. Gutters in public or gang 
shower rooms shall have rounded corners for easy cleaning 
and shall be sloped not less than 2 percent toward drains. 
Drains in gutters shall be spaced at a maximum of 8 feet 
(2438 mm) from sidewalls nor more than 16 feet (4877 mm) 
apart. 

408.9 Location of Valves and Heads. Control valves and 
showerheads shall be located on the sidewall of shower com- 
partments or otherwise arranged so that the showerhead does 
not discharge directly at the entrance to the compartment so 
that the bather can adjust the valves prior to stepping into the 
shower spray. 

408 J O Water Supply Riser. A water supply riser from the 
shower valve to the showerhead outlet, whether exposed or 
not, shall be securely attached to the structure. 

409.0 Bathtubs and Whirlpool Bathtubs. 

409.1 Application. Bathtubs and whirlpool bathtubs shall 
comply with the applicable standards referenced in Table 
1401.1. Pressure sealed doors within a bathtub or whirlpool 
bathtub enclosure shall comply with the applicable standards 
referenced in Table 1 40 1 . 1 . 

409.2 Waste Outlet. Bathtubs and whirlpool bathtubs shall be 
provided with a waste outlet and tailpiece not less than V/i 
inches (40 mm) in diameter. Fixture tailpieces shall be con- 
structed of materials in accordance with Section 701.1. Waste 
outlets shall be provided with an approved stopper or strainer. 

409.3 Overflow. Overflows shall be installed in accordance 
with Section 404.1. 

409.4 Limitation of Hot Water in Bathtubs and Whirlpool 
Bathtubs. The maximum hot water temperature discharging 
from the bathtub and whirlpool bathtub filler shall be limited 
to 120°F (49°C) by a device that is in accordance with ASSE 
1070 or CSA B 125.3. Water heater thermostats shall not be 
considered a control for meeting this provision. 

409.5 Backflow Protection. The water supply to a bathtub 
and whirlpool bathtub filler valve shall be protected by an air 
gap or in accordance with Section 417.0. 

409.6 Installation and Access. Bathtubs and whirlpool bath- 
tubs shall be installed in accordance with the manufacturer's 
installation instructions. Access openings shall be of size and 
opening to permit the removal and replacement of the circu- 
lation pump. 



Whirlpool pump access located in the crawl space shall 
be located not more than 20 feet (6096 mm) from an access 
door, trap door, or crawl hole. 

The circulation pump shall be located above the crown 
weir of the trap. 

The pump and the circulation piping shall be self-drain- 
ing to minimize water retention. Suction fittings on whirlpool 
bathtubs shall be listed in accordance with ASM E A 1 12.1 9.7. 

410.0 Bidets. 

410.1 Application. Bidets shall comply with the applicable 
standards referenced in Table 1401 .1 . 

41.0.2 Backflow Protection. The water supply to the bidet 
shall be protected by an air gap or in accordance with Section 
603.3.2, Section 603.3.5, or Section 603.3.6. 

410.3 Limitation of Water Temperature in Bidets. The 
maximum hot water temperature discharging from a bidet 
shall be limited to 1 10°F (43°C) by a device that is in accor- 
dance with ASSE 1070 or CSA B 125.3. Water heater ther- 
mostats shall not be considered a control for meeting this 
provision. 

411.0 Water Closets. 

411.1 Water Closet Bowls. Water closet bowls for public use 
shall be of the elongated type, in nurseries, schools, and other 
similar places where plumbing fixtures are provided for the 
use of children less than 6 years of age, water closets shall be 
of a size and height suitable for children's use. Water closets 
shall be equipped with seats in accordance with Section 41 1 .2 
through Section 411.2.2. 

411.2 Water Closet Seats. Water closet seats shall be of 
smooth, non-absorbent material. Seats for public use shall 
comply with the applicable standards referenced in Table 
1401.1. 

411.2.1 Type. Water closet seats, for public use, shall be 
of the elongated type and either of the open front type or 
have an automatic seat cover dispenser. 

411.2.2 Size. Water closet seats shall be properly sized 
for the water closet bowl type. 

412.0 Urinals. 

412.1 General. A water supply to a urinal shall be protected 
by an approved-type vacuum breaker or other approved back- 
flow prevention device in accordance with Section 603.5. 

413.0 Flushing Devices for Water Closets and Urinals. 

413.1 Application. Flushometer valves, 11 us ho meter tanks, 
or flush tanks shall comply with the applicable standards ref- 
erenced in Table 1401 . 1 . 

413.2 Flushing Devices Required. Each water closet, urinal, 
clinic sink, or other plumbing fixture that depends on trap 
siphonage to discharge its waste contents shall be provided 
with a flushometer valve, flushometer tank, or Hush tank 
designed and installed so as to supply water in sufficient 
quantity and rate of flow to flush the contents of the fixture to 



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55 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



which it is connected, to cleanse the fixture, and to refill the 
fixture trap, without excessive water use. Flushing devices 
I shall meet anti siphon requirements in accordance with Sec- 
tion 603.5. 

413.3 Flushometer Valves. No manually controlled 
tins ho meter valve shall be used to flush more than one urinal, 
and each such urinal flushometer valve shall be an approved, 
self-closing type discharging a predetermined quantity of 
water. Flushometers shall be installed so that they will be 
accessible for repair. Flushometer valves shall not be used 
where the water pressure is insufficient to properly operate 
them. Where the valve is operated, it shall complete the cycle 
of operation automatically, opening fully, and closing posi- 
tively under the line water pressure. Each flushometer shall be 
provided with a means for regulating the flow through it. 

I jOSHPD /, 2, 3, Sl 4] Sensor operated flush valves shall be 
I capable of functioning during loss of normal power. 

413.4 Water Supply for Flush Tanks. An adequate quantity 
of water shall be provided to flush and clean the fixture 
served. The water supply for flushing tanks and flushometer 
tanks equipped for manual flushing shall be controlled by a 
float valve or other automatic device designed to refill the 
tank after each discharge and to completely shut off the water 
flow to the tank where the tank is filled to operational capac- 
ity. Provision shall be made to automatically supply water to 

S the fixture so as to refill the trap seal after each flushing. 

413.5 Overflows in Flush Tanks. Flush tanks shall be pro- 
vided with overflows discharging into the water closet or uri- 
nal connected thereto. Overflows supplied as original parts 
with the fixture shall be of sufficient size to prevent tank flood- 
ing at the maximum rate at which the tank is supplied with 
water under normal operating conditions and where installed 

I in accordance with the manufacturer's installation instructions. 

414.0 Dishwashing Machines. 

414.1 Application. Domestic or commercial dishwashing 
machines shall comply with the applicable standards refer- 
enced in Table .1401 .1. 

414.2 Backflow Protection. The water supply connection to 
a commercial dishwashing machine shall be protected by an 
air gap or a backflow prevention device in accordance with 
Section 603.3.2, Section 603.3.5, or Section 603.3.6. 

414.3 Drainage Connection. Domestic dishwashing 
machines shal l discharge indirectly through an air gap fitting 
in accordance with Section 807.4 into a waste receptor, a wye 
branch fitting on the tailpiece of a k itchen sink, or dishwasher 
connection of a food waste grinder. Commercial dishwash- 
ing machines shall discharge indirectly through an air gap or 
direct connection in accordance with Section 704.3 with floor 
drain protection. 

415.0 Drinking Fountains. 

415.1 Application. Drinking fountains shall be self-closing 
and comply with NSF 6 1 and to the applicable standards ref- 
erenced in Table 1 401 . 1 . fHCD 1] Drinking fountains shall be 
installed and so regulated that a jet of water extending at least 



2 inches (51 mm) in height from the water orifice shall be 
constantly available. The orifice shall not be accessible to the 
mouth of the drinker nor subject to immersion. 

415.2 Where Required. Where food is consumed indoors, 
water stations shall be permitted to be substituted for drink- 
ing fountains. Drinking fountains shall not be required for an 
occupant load of 30 or less. 

415.3 Drainage Connection. Drinking fountains shall be per- 
mitted to discharge directly into the drainage system or indi- 
rectly through an air break in accordance with Section 809.1 . 

415.4 Location. Drinking fountains shall not be installed in 
toilet rooms. 

416.0 Emergency Eyewash and Shower Equipment. 

416.1 Application. Emergency eyewash and shower equip- 
ment shall comply with 1SEA Z358. 1 . 

416.2 Water Supply. Emergency eyewash and shower equip- 
ment shall not be limited in the water supply flow rates. Flow 
rate, discharge pattern, and temperature of flushing fluids 
shall be provided in accordance with ISEA Z358.1. based on 
the hazardous material . 

416.3 Installation. Emergency eyewash and shower equip- 
ment shall be installed in accordance with the manufacturer's 
installation instructions. 

416.4 Location. Emergency eyewash and shower equipment 
shall be located on the same level as the hazard and accessi- 
ble for immediate use. The path of travel shall be free of 
obstructions and shall be clearly identified with signage. 

416.5 Drain. A drain shall not be required for emergency eye- 
wash or shower equipment. Where a drain is provided, the 
discharge shall be in accordance with Section 811.0. 

417.0 Faucets and Fixture Fittings. 

4.17.1 Application. Faucets and fixture fittings shall comply 
with ASMEA112.18.1/CSAB125.1. Fixture fittings covered 
under the scope of NSF 61 shall be in accordance with the 
requirements of NSF 61. 

417.2 Deck Mounted Bath/Shower Valves. Deck mounted 
bath/shower transfer valves with integral backflow protection 
shall comply with ASME A 1 12.18.7. This shall include hand- 
held showers and other bathing appliances mounted on the 
deck of bathtubs or other bathing appliances that incorporate 
a hose or pull out feature. 

417.3 Handheld Showers. Handheld showers shall comply 
with ASME Al 12. 18. 1/CSAB l .25.1. Handheld showers with 
integral backflow protection shall comply with ASME 
Al 12. 18.1/CSA B125.1 or shall have a backflow prevention 
device that is in accordance with ASME Al 1 2.1 8.3. 

417.4 Faucets and Fixture Fittings with Hose Connected 
Outlets. Faucets and fixture fittings with pull out spout shall 
comply withASMEA112.18.1/CSAB125.1. Faucets and fix- 
ture fittings with pull out spouts with integral backflow pro- 
tection shall comply with ASME Al 12. 18.1/CSA B125.1 or 
shall have a backflow preventer device that is in accordance 
with ASME Al 12. 18.3. 



56 



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1 417.5 Separate Controls for Hot and Cold Water. Where 
two separate handles control the hot and cold water, the left- 
hand control of the faucet where facing the fixture fitting out- 
let shall control the hot water. Faucets and diverter shall be 
connected to the water distribution system so that hot water 
corresponds to the left side of the fittings. 

Single-handle mixing valves shall have the flow of hot 
water correspond to the markings on the fitting. 

418.0 Floor Drains. 
§ 418.1 Application. Floor drains shall comply with the appli- 
I cable standards referenced in Table 1401 .1 . 

418.2 Strainer. Floor drains shall be considered plumbing 
fixtures, and each such drain shall be provided with an 
approved-type strainer having a waterway equivalent to the 

I area of the tailpiece. Floor drains shall be of an approved type 
| and shall provide a watertight joint in the floor. 

418.3 Location of Floor Drains. Floor drains shall be 
installed in the following areas: 

(1 ) Toilet rooms containing two or more water closets or a 
combination of one water closet and one urinal, except in 
a dwelling unit. 

(2) Commercial kitchens and in accordance with Section 
704.3. 

(3) Laundry rooms in commercial buildings and common 
laundry facilities in multi-family dwelling buildings. 

418.4 Food Storage Areas. Where drains are provided in 
storerooms, walk-in freezers, walk- in coolers, refrigerated 
equipment, or other locations where food is stored, such 
drains shall have indirect waste piping. Separate waste pipes 
shall be run from each food storage area, each with an indi- 
rect connection to the building sanitary drainage system. 
Traps shall be provided in accordance with Section 801 .2.2 of 
this code and shall be vented. 

Indirect drains shall be permitted to be located in freez- 
ers or other spaces where freezing temperatures are main- 
tained, provided that traps, where supplied, shall be located 
where the seal will not freeze. Otherwise, the floor of the 
freezer shall be sloped to a floor drain located outside of the 
storage compartment. 

418.5 Floor Slope. Floors shall be sloped to floor drains. 

419.0 Food Waste Disposal Units. 

419.1 Application. Food waste disposal units shall comply 
with the applicable standards referenced in Table 1401.1. 

419.2 Drainage Connection. Approved wye or other direc- 
tional-type branch fittings shall be installed in continuous 
wastes connecting or receiving the discharge from a food 

| waste disposal unit. No dishwasher drain shall be connected 
to a sink tailpiece, continuous waste, or trap on the discharge 
side of a food waste disposal unit. 

419.3 Water Supply. A cold water supply shall be provided 
for food waste disposal units. Such connection to the water 
supply shall be protected by an air gap or backflow preven- 
tion device in accordance with Section 603.2. 



420.0 Sinks. 

420.1 Application. Sinks shall comply with the applicable 
standards referenced in Table 1 40 1 . 1 . 

420.2 Water Consumption. Sink faucets shall have a maxi- 
mum flow rate of not more than 2.2 gpm at 60 psi (8.3 L/m at 
414 kPa) in accordance with ASM E A 1 12. 1 8. 1 7CS A B 1 25.1. 

Exceptions: 

(1) Clinical sinks 

(2) Laundry trays . 

(3) Service sinks 

420.3 Waste Outlet. Kitchen and laundry sinks shall have a 
waste outlet and fixture tailpiece not less than 1 V 2 inches (40 
mm) in diameter. Service sinks shall have a waste outlet and 
fixture tailpiece not less than 2 inches (50 mm) in diameter. 
Fixture tailpieces shall be constructed from the materials 
specified in Section 701 . 1 for drainage piping, provided, how- 
ever, that such connections where exposed or accessible shall 
be permitted to be of seamless drawn brass not less than No. 
20 B & S Gauge (0.032 inches) (0.8 1 mm). Waste outlets shall 
be provided with an approved strainer. 

421.0 Fixtures and Fixture Fittings for Persons with Dis- 
abilities. 

421.1 General. Plumbing fixtures and fixture fittings for per- 
sons with disabilities shall comply with the appropriate stan- 
dards referenced in Table 1401.1 of this code. /HCD J -AC/ 

Specif ic requirements regarding accommodations for persons 
with disabilities are contained in California Code of Regula- 
tions, Title 24, Part 2, Chapter II A. Table 1401. 1 does not con- j) 
tain the correct accessibility standards for use in California. 

421.2 Limitation of Hot Water Temperature for Public 
Lavatories. Hot water delivered from public-use lavatories 
shall be limited to a maximum temperature of 120°F (49°C) 
by a device that is in accordance with ASSE 1070 or CSA 
B 125.3. The water heater thermostat shall not be considered 
a control for meeting this provision. 

422.0 Minimum Number of Required Fixtures. 

422.1 Fixture Count. Plumbing fixtures shall be provided for 
the type of building occupancy and in the minimum number 
shown in Table 422.1 (OSHPD /, 2, 3 & 4/ and Table 4-2. The H 
total occupant load and occupancy classification shall be deter- 
mined in accordance with Occupant Load Factor Table A. I! 
Occupancy classification not shown in Table 422. 1 shall be con- 
sidered separately by the Authority Having jurisdiction. 

The minimum number of fixtures shall be calculated at 
50 percent male and 50 percent female based on the total 
occupant load. Where information submitted indicates a dif- 
ference in distribution of the sexes such information shall be 
used in order to determine the number of fixtures for each 
sex. Once the occupancy load and occupancy are determined, 
Table 422.1 shall be applied to determine the minimum num- 
ber of plumbing fixtures required. Where applying the fixture 



2013 CALIFORNIA PLUMBING CODE 



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PLUMBING FIXTURES AND FIXTURE FITTINGS 



ratios in Table 422. 1 results in fractional numbers, such num- 
bers shall be rounded to the next whole number. For multiple 
occupancies, fractional numbers shall be first summed and 
then rounded to the next whole number. 

422.1.1 Family or Assisted-Use Toilet and Bathing 
Facilities. Where family or assisted-use toilet and 
bathing rooms are required, in applicable building regu- 
lations, the facilities shall be installed in accordance with 
those regulations. 

422. 1.2 IDSA-AS] Effective January 1, 1990, in new 
construction and those existing facilities which occu- 
pancy type are listed in Tables 422,1 and 4-4 for public 
use, which apply for permit to undertake construction, 
structural alterations, repairs or improvement which 
exceed 50 percent of the square footage of the entire facil- 
ity, shall install water closets, urinals, lavatories and 
drinking fountains as stipulated in Tables 422.1 and 4-4 
for public use. Community and/or municipal parks with 
a bleacher capacity not exceeding 500 seats shall be 
exempt from the requirements of this section and Tables 
422.1 and 4-4. Each bathroom shall comply with Part 2, 
Chapter 11 A and 11 B of the California Building Code. 

422.2 Separate Facilities. Separate toilet facilities shall be 
provided for each sex. 

Exceptions: 

(1) Residential installations. 

1 (2) In occupancies with a total occupant load of 10 or less, 
including customers and employees, one toilet facility, 
designed for use by no more than one person at a time, 
shall be permitted for use by both sexes. 

(3) In business and mercantile occupancies with a total occu- 
pant load of 50 or less including customers and employ- 
ees, one toilet facility, designed for use by no more than 
one person at a time, shall be permitted for use by both 

sexes. 

422:2.1 [OSHPD I, 2, 3 & 4/ Separate toilet facilities 
shall be provided for the use of patients, staff personnel 
and visitors. 

Exception for Primary Care Clinics only: Where a facil- 
ity contains no more than three examination and/or treat- 
ment rooms, the patient toilet shall be permitted to serve 
waiting areas. 

422.3 Fixture Requirements for Special Occupancies. 
Additional fixtures shall be permitted to be required where 
unusual environmental conditions or referenced activities are 
encountered. In food preparation areas, fixture requirements 
shall be permitted to be dictated by health codes. 

1422.4 Toilet Facilities Serving Employees and Customers. 
Each building or structure shall be provided with toilet facil- 
ities for employees and customers. Requirements for cus- 
tomers and employees shall be permitted to be met with a 
single set of restrooms accessible to both groups. 

Required toilet facilities for employees and customers 
located in shopping malls or centers shall be permitted to be 
met by providing a centrally located toilet facility accessible 



to several stores. The maximum travel distance from entry to 
any store to the toilet facility shall not exceed 300 feet (91 440 1 
mm). 

Required toilet facilities for employees and customers in 
other than shopping malls or centers shall have a maximum 
travel distance not to exceed 500 feet (152.4 m). 

422.4.1 Access to Toilet Facilities. In multi -story build- 
ings, accessibility to the required toilet facilities shall not 
exceed one vertical story. Access to the required toilet 
facilities for customers shall not pass through areas des- 
ignated as for employee use only such as kitchens, food 
preparation areas, storage rooms, closets, or similar 
spaces. Toilet facilities accessible only to private offices 
shall not be counted to determine compliance with this 
section. 

422.5 Toilet Facilities for Workers. Toilet facilities shall be 
provided and maintained in a sanitary condition for the use of 
workers during construction. 

422.6 [CA] Cosmetology. Each school shall provide public 
toilet rooms for each sex on the licensed premises in accor- 
dance with the California Plumbing Code, Table 422.1. 

422.7 [CA j Cosmetology Establishments. Each establish- 
ment where hairdressing services are performed shall pro- 
vide at least one public toilet room located on the premises in 
accordance with the California Plumbing Code, Table 422. 1. 

422.8 [DHS] Commissaries Serving Mobile Food Prepara- 
tion Units. Commissaries serving mobile food preparation 
units shall have at least one hose bib. The hose bib shall be 
supplied with hot and cold water and be provided with a sin- 
gle spout, a backflow -preventer device and shall be located 
on the premises of the establishment. 

422.9 [DPH] Employee Lavatories in Food Establishments. 

Employee lavatories installed in food establishments shall be 
equipped with an approved single spout capable of providing 
tempered (100°F - 115°F) (37.8°C - 46. IT) running water 

Note: This requirement applies only to commissaries serving 
mobile food preparation units. 



58 



2013 CALIFORNIA PLUMBING CODE 



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TABLE 422.1 
MINIMUM PLUMBING FACILITIES 1 

Each building shall be provided with sanitary facilities, including provisions for persons with disabilities as prescribed by the Department Having Jurisdic- 
tion 4 . Table 422. 1 applies to new buildings, additions to a building, and changes of occupancy or type in an existing building resulting in increased occupant || 



load. 



1 



For requirements for persons with disabilities, Chapter 11 A or 11B of the California Building Code shall be used. 

The total occupant load shall be determined in accordance with the [BSC, DSA-SS & DSA-SS/CC) Occupant Load Factor Table A. 



Exceptions: 

(T) [HCD 1-4 C HCD 2] For applications listed in Sections 1.8.2.1.2 and 1.8.2. 1.3 regulated by the Department of Housing and Communit y Develop- 
ment, each building shall be provided with sanitary facilities, including provisions for persons with disabilities as prescribed by the Department. Cov- 
ered multifamily dwellings required to be accessible to persons with disabilities shall comply with California Code of Regulations, Title 24, Part 2, 
Chapter 11 A. Permanent buildings in mohilehome parks and special occupancy parks required to be accessible by persons with disabilities, shall com- 
ply with California Code of Regulations, Title 24, Part 2, Chapter I IB. 

[HCD Ij For limited density owner-built rural, dwelling sanitary facilities, the type, design and number of facilities as required and approved by the local 
health official shall, he provided to the dwelling sites. It shall, not be required that such facilities be located within die dwelling. 



(2) 



TYPE OF 
OCCUPANCY 2 



A-3 Assembly occu- 
pancy (typical without 
fixed or permanent seat- 
ing)- arcades, places of 
worship, museums, 
libraries, lecture halls, 
gymnasiums (without 
spectator seating), 
indoor pools (without 
spectator seating) 



WATER CLOSETS 
(FIXTURES PER PERSON) 3 



! URINALS 
! (FIXTURES 
PER PERSON) 



LAVATORIES 
(FIXTURES PER PERSON) 



A-l Assembly occu- 
pancy (fixed or perma- 
nent seating)- theatres, 
concert halls and audito- 
riums 



Male 
1: 1-100 
2: 101-200 
3: 201-400 



' Female 
1: 1-25 
2: 26-50 
3: 51-100 
4: 101-200 
6:201-300 
8: 301-400 



Male 
1: 1-200 
2: 201-300 
3: 301-400 
4: 401-600 



Male 
1: 1-200 
2: 201-400 
3: 401-600 
4: 601-750 



Female 
1: 1-100 
2: 101-200 
4:201-300 
5: 301-500 
6: 501-750 



Over 400, add 1 fixture Over 600, ; Over 750, add 1 fixture 



for each additional 500 
males and I fixture for 
each additional 125 
females. 



A-2 Assembly occu- 
pancy- restaurants, pubs, 
lounges, night clubs and 
banquet halls 



I Male 
j I : 1-50 
2; 51-150 
151-300 
301-400 



Female 
1: 1-25 
2: 26-50 
3: 51-100 
4: 101-200 
6: 201-300 
8: 301-400 



add 1 fixture 
for each 
additional 
300 males. 

Male 

1: 1-200 
|2:201-300 
[3: 301-400 
k 401-600 



for each additional 250 
males and 1 fixture for 
each additional 200 
females. 



Male 



Female 



Over 400, add 1 fixture 
for each additional 250 
males and 1 fixture for 
each 125 females. 



1: 1-150 1: 1-150 
2: 151-200 1 2: 151-200 
3:201-400 1 4: 201-400 



i 



| Female 
1: 1-25 



Male 
I: 1-100 
2: 101-200 2: 26-50 
3:201-400 3: 51-100 
4: 101-200 
6: 201-300 
8: 301-400 



Over 600, 
add 1 fixture 
for each 
additional 
300 males. 
Male 
1: 1-100 
2: 101-200 
3:201-400 
4: 401-600 



Over 400, add 1 fixture 
for each additional 250 
males and 1 fixture for 
each additional 200 
females. 



Male 
1: 1-200 
2: 201-400 
3:401-600 
4: 601-750 



Female 
1: 1-100 
2: 101-200 
4: 201-300 
5: 301-500 
6: 501-750 



Over 400, add 1 fixture 
for each additional 500 
males and 1 fixture for 
each additional 1 25 
females. 



Over 600, 
! add 1 fixture 
| for each 
i additional 
300 males. 



Over 750, add 1 fixture 
for each additional 250 
males and 1 fixture for 
each additional 200 
females. 



BATHTUBS OR 
SHOWERS 
(FIXTURES 

PER PERSON) 



DRINKING 
FOUNTAINS/ 
FACILITIES 
(FIXTURES PER 
PERSON) 

1. 1-250 

2: 251-500 

3: 501-750 



OTHER 

1 service 
sink or 
laundry tray 



I Over 750, add 
1 fixture for 
each additional 
500 persons. 

1: 1-250 
2: 251-500 
3: 501-750 



I service 
sink or 
| laundry tray 



j Over 750, add 
1 fixture for 
j each additional 
1 500 persons. 

I: 1-250 
■ 2: 251-500 
1 3: 501-750 



sink or 
laundry tray 



| Over 750, add j 
i 1 fixture for ! 
! each additional j 
: 500 persons. 



2013 CALIFORNIA PLUMBING CODE 



59 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



TABLE 422.1 
MINIMUM PLUMBING FACILITIES 1 (continued) 



TYPE OF 
OCCUPANCY 2 

A-4 Assembly occu- 
pancy (indoor activities 
or sporting events with 
spectator seating )- 
swimming pools, skat- 
ing rinks, arenas and 
gymnasiums 



WATER CLOSETS 
(FIXTURES PER PERSON) 3 



URINALS 
(FIXTURES 

! PER PERSON) 



LAVATORIES 
(FIXTURES PER PERSON) 



Male 



1-100 

101-200 

201-400 



I Female 

1: 1-25 
|2: 26-50 

3: 51-100 
| 4: 101-200 

6: 201-300 

8: 301-400 



Male 



1-100 
101-200 
201-400 
401-600 



! Male 
1: 1-200 
2: 201-400 
3: 401-750 



Female 
1: 1-100 
2: 101-200 
4: 201-300 
5: 301-500 
6; 501-750 



Over 400, add 1 fixture Over 600, 



for each additional 500 
males and 1 fixture for 
each additional 125 
females. 



A-5 Assembly occu- 
pancy (outdoor activities 
or sporting eventu- 
al nu semen t parks, 
grandstands and stadi- 
ums 



j 

B Business occupancy 

(office, professional or 
; service type transac- 
j tions)- banks, vet clinics, 
i hospitals, car wash, 

banks, beauty salons, 
i ambulatory health care 
j facilities, laundries and 
I dry cleaning, educational 
■ institutions (above high 

school), or training facili- 
i ties not located within 
| school, post offices and 
i printing shops 

I E Educational occu- 
; pancy-private or public 
schools 

F1, F2 Factory or Indus- 
I trial occupancy-fabricat- 
I ing or assembly work 



Male ! Female 

1: 1-100 1: 1-25 
2: 101-200 2:26-50 
3:201-400 3: 51-100 
4: 101-200 
6: 201-300 
8: 301-400 

Over 400, add 1 fixture 
for each additional 500 
males and 1 fixture for 
each additional 125 
i females. 



Male 

1:1 -50 
|2: 51-100 
13: 101-200 



Female 
1: 1-15 
2: 16-30 
3: 31-50 



Over 400, add I fixture 
for each additional 500 
males and 1 fixture for 
each additional 1 50 
females. 



;Malc 
1 I per 50 



;Male 
!l: 1-50 
2: 51-75 
3: 76 



00 



| Female 
• 1 per 30 

Female 
1: 1-50 

1 2: 51-75 
3; 76-100 



; Over 1 00, add 1 fixture 
| for each additional 40 
j persons. 



add 1 fixture 
for each 
additional 
300 males. 



Male 



1-100 
101-200 
201-400 
401 -600 



Over 750, add 1 fixture 
for each additional 250 
males and 1 fixture for 
each additional 200 
females. 



Male 
1: 1-200 
2: 201-400 
3: 401-750 



Female 
.1: 1-100 
2: 101-200 
4:201-300 
5: 301-500 
6: 501-750 



4: 201-400 4: 51-100 
8: 101-200 
111:201-400 



Over 600, 
add I fixture 
for each 
[ additional 
|300 males. 
Male 
jl: 1-100 
12: 101-200 
\.3: 201-400 
4: 401-600 



; Over 750, add 1 fixture 
for each additional 250 
males and 1 fixture for 
1 each additional 200 
females. 

Male Female 
1:1-75 1:1-50 
\2: 76-150 2:51-100 
3: 151-200 3: 101-150 
201-300 4: 151-200 
301-400 5:201-300 
6: 301-400 



Over 600, 
add 1 fixture 
for each 
additional 
300 males. 



Over 400, add 1 fixture 
for each additional 250 
males and 1 fixture for 
each additional 200 
females. 



Male 
1 per 100 



Male 

1 1 per 40 



Male 
1: 1-50 
2: 51-75 
3: 76-100 



Female 
1 per 40 



Female 
1: 1-50 
2: 51-75 
3: 76-100 



BATHTUBS OR 
SHOWERS 
(FIXTURES 

PER PERSON) 



DRINKING 
FOUNTAINS/ 
FACILITIES 
(FIXTURES PER 
PERSON) 



1-250 

251-500 

501-750 



Over 750, add 
1 fixture for 
each additional 
500 persons. 



1-250 

251-500 

501-750 



Over 750, add 
1 fixture for 
each additional 
500 persons. 

1 per 150 



1 per 150 



Over 100, add 1 fixture 
for each additional 40 
persons. 



1 shower for 1: 1-250 
each 15 per- 2: 251-500 
sons exposed 3:501-750 
to excessive 

heat or to skin 

contamination \ ° vcr 750 > add 



with poison- 
ous, infec- 
tious or 
irritating 
material. 



OTHER | 

1 service j 
sink or j 
laundry tray : 



1 service 
sink or 
laundry tray 



j 1 service 
i sink or j 
laundry tray j 



1 service j 
sink or 
laundry tray 

1 service 
sink or j 
laundry tray | 



fixture for 
each additional J 
500 persons. 



60 



2013 CALIFORNIA PLUMBING CODE 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



TABLE 422.1 
MINIMUM PLUMBING FACILITIES 1 (continued) 



TYPE OF 
OCCUPANCY 2 

j 1-1 Institutional occu- 
| pancy (bouses more 
than 16 persons on a 
! 24-hour basis)- sub- 
! stance abuse centers, 
i assisted living, group 
j homes, or residential 
! facilities. 



1 1-2 Insti- 
| tut ion a I 
! occu- 
| pancy- 
\ medical, 

psych i- 
\ atric, sin - 
i gical or 
\ nursing 

homes 



Hospitals 
and nursing 
homes-indi- 
vidual 
rooms and 
ward room 



WATER CLOSETS 
(FIXTURES PER PERSON) 3 



Female 
1 per 15 



Hospital 
Waiting or 
Visitor 
Rooms 

Employee 
Use 



1-3 Insti- 
tutional 
occu- 
pancy 
(houses 
more 
than 5 
people) 



Prisons 



Correc- 
tional facil- 
ities or 
juvenile 
center 

Employee 

Use 



1-4 Institutional occu- 
| pancy (any age that 
j receives care for less 
than 24 hours) 



per room 



Male 
1 per 1 5 



URINALS 
(FIXTURES PER 
PERSON) 



LAVATORIES 
(FIXTURES PER PERSON) 



1 per 8 patients 



per room 



Male 



Female 



1: 1-15 


1:1-15 


2: 16-35 


3: 16-35 


3: 36-55 


4: 36-55 


Over 55, add I fixture for \ 


each additional 40 per- 


sons. 





1 per cell 



1 per 8 



Male 
1:1-15 
2: 16-35 
3: 36-55 



Female 
1: 1-15 
3: 16-35 
4: 36-55 



Over 55, add 1 fixture for 
each additional 40 per- 
sons. 



Male 
1-15 
16-35 
: 36-55 



j Female 
I: 1-15 
3: 16-35 
4: 36-55 



Over 55, add 1 fixture for 
each additional 40 persons. 



Female 
1 per 15 



1 per room 



BATHTUBS OR 
SHOWERS 
(FIXTURES 

PER PERSON) 



per 8 



DRINKING 
FOUNTAINS/ 
FACILITIES 
(FIXTURES | 
PER PERSON) i 



OTHER 



1 per 150 



| I service sink 
or laundry 
tray 



per room 



per 150 



service sink 
or laundry 
tray 



1 per 10 patients 



per room 



| 1 per 20 
| patients 



Male 
\ I per 40 



Female 
1 per 40 



per room 



per cell 1 per 20 



1 per 10 



1 per 8 



1 per cell 
block/floor 

1 per floor 



service sink 
or laundry 
tray 



Male Female 
1 per 40 1 per 40 



1 per 150 



Male [Female 
I per 40 I per 40 



1 per 150 



1 service sink 
or laundry 
tray 



2013 CALIFORNIA PLUMBING CODE 



61 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



TYPE OF 
OCCUPANCY 2 

i 

I M Mercantile occu- 
pancy (the sale of 
merchandise and 
accessible to the pub- 
lic) 



'R-.1 Residential occu- 
1 pancy (minimal stay)- 
I hotels, motels, bed 
I and breakfast homes 



R-2 Res- 
idential 
occu- 
pancy 
(long- 
term or 
perma- 
nent) 



Dormito- 
ries 



Employee 
Use 



Apartment 
house/unit 



TABLE 422.1 
MINIMUM PLUMBING FACILITIES 1 (continued) 



WATER CLOSETS 
(FIXTURES PER PERSON) 3 



URINALS 
(FIXTURES PER 
PERSON) 



LAVATORIES 
(FIXTURES PER PERSON) 



Male Female 
I: I - 1 00 I: 1-100 
2: 101-200 2: 101-200 
3: 201-400 4: 201-300 
6: 301-400 



! Male 
0: 1-200 
1: 20 1 -400 



Male 
1: 1-200 
2: 201-400 



Female 



1-200 

201-300 

301-400 



BATHTUBS OR 
SHOWERS 
(FIXTURES 

PER PERSON) 



Over 400, add 1 fixture 
for each additional 500 
males and 1 fixture for 
each 200 females. 



Over 400. add Over 400. add 1 fixture 
: 1 fixture for ; for each additional 500 
j each additional | males and 1 fixture for 
500 males. each 400 females. 



per sleeping room 



per s I eeping room 



Male 
per I 



Female 
1 per 8 



Add 1 fixture for each 
additional 25 males and 1 
fixture for each addi- 
tional 20 females. 



I per 25 



Over 150, add 
1 fixture for 
each additional 
50 males. 



Male 
1 per 



Female 
1 per 12 



DRINKING 
FOUNTAINS/ 
FACILITIES 
(FIXTURES 
i PER PERSON) 

1: 1-250 
2: 251-500 
3: 501-750 



OTHER 



1 service sink 
or laundry 
tray 



Over 750, 
add J fixture 
for each addi- 
tional 500 
persons. 



1 per sleeping 
room 



1 per 8 



per 150 



Male 
1: 1-15 
2: 16-35 
3: 36-55 



Female 
1: 1-15 

; 3: 16-35 
4: 36-55 



Over 55, add 1 fixture for 
: each additional 40 persons 

i 1 per apartment 



Add 1 fixture for each 
additional 20 males and 
1 fixture for each addi- 
tional 1 5 females. 



Male 
1 per 40 



; Female 
! 1 per 40 



1 per apartment 



1 per 

apartment 



R-3 Residential occu- Male 



Female 



pancy (long-term or 
permanent in nature) 
for more than 5 but 
does not exceed 16 
occupants) 



1 per 10 I per 8 

Add 1 fixture for each 
additional 25 males and 1 
fixture for each addi- 
tional 20 females. 



Male 
I I per 12 



Female 
1 per 12 



per 8 



jl per 150 



R-3 Residential occu- ; 1 per one and two family 
pancy (one and two dwelling 
family dwellings) 



Add 1 fixture for each 
additional 20 males and ! 
I fixture for each addi- 
tional 15 females. 

1 per one and two family 1 per one and 
dwelling two family 

dwelling 



: 1 service sink 
or laundry 
* tray 

; 1 service sink 
j or laundry 
| tray 



1 kitchen sink 
per apartment. 
1 laundry tray 
or 1 automatic 
clothes washer 
connection per 
unit or I laun- 
dry tray or 1 
\ automatic 
\ clothes washer \ 
\ connection for : 
each 12 units 

1 service sink 
; or laundry 
tray 



1 kitchen sink 
and 1 auto- 
matic clothes 
washer con- 
nection per one 
and two family 
dwelling 



62 



2013 CALIFORNIA PLUMBING CODE 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



TABLE 422.1 
MINIMUM PLUMBING FACILITIES 1 (continued) 



TYPE OF 
OCCUPANCY 2 

R-4 Residential 
occupancy (residen- 
tial care or assisted 
living) 



WATER CLOSETS 



(FIXTURES PER PERSON) 



URINALS 
(FIXTURES PER 
PERSON) 



Male Female 
1 per 1 1 per 8 

Add 1 fixture for each 
additional 25 males and 
fixture for each addi- 
tional 20 females. 



LAVATORIES 
(FIXTURES PER PERSON) 



Male 

: 1 per 



Female 
1 per 12 



BATHTUBS 
OR SHOWERS 

(FIXTURES 
I PER PERSON) 

: 1 per 8 



DRINKING 
FOUNTAINS/ 
FACILITIES 
{FIXTURES PER 
| PERSON) 

I per 150 



; Add 1 fixture for each 
: additional 20 males and 
1 fixture for each addi- 
tional 15 females. 



S-l, S-2 Storage 


Male 


Female 




Male 


Female 


occupancy-storage 


1: 1-100 


1: 1-100 




1: 1-200 


1: 1-200 


of goods, ware- 


2: 101-200 


2: 101-200 




2: 201-400 


2:201-400 


house, aircraft 


3: 201-400 


3:201-400 




3:401-750 


3:401-750 


hanger, food prod- 
ucts, appliances 


Over 400, add 1 fixture 
for each additional 500 
males and 1 fixture for 
each additional 1 50 
females. 




Over 750, add 1 fixture 
for each additional 500 
persons. 



1: 1.-250 
2: 251-500 
3: 501-750 



Over 750, add 
I fixture for 
each additional 
500 persons. 



Notes: 



OTHER 



1 service sink 
or laundry tray 



I service sink 
or laundry tray 



The figures shown are based upon one fixture being the minimum required for the number of persons indicated or any fraction thereof. 
A restaurant is defined as a business that sells food to be consumed on the premises. 

a. The number of occupants for a drive-in restaurant shall be considered as equal to the number of parking stalls. 

b. Hand-washing facilities shall be available in the kitchen for employees. 

The total number of required water closets for females shall be not less than the total number of required water closets and urinals for males. [BSC] This require- 
ment shall not apply when single occupancy toilet facilities are provided for each sex in an A or E occupancy with, an occupant load of less than 50. Either 

a. The required urinal shall he permitted to be omitted or 

b. If installed, the urinal shall not require a second water closet to be provided for the female. 

(BSC, DSA -A C, DSA -SS, DSA -SS/CC, BCD 1 & BCD 2, OSHPD 1, 2, 3 & 4] In accordance with Sections 1.8.7 and 301.2, the A uthority Ha viug Juris- 
diction may approve alternative designs criteria when determining the minimum number of plumbing fixtures . 



2013 CALIFORNIA PLUMBING CODE 



63 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



TABLE A. 

OCCUPANT LOAD FACTOR: 
[BSC, DSA-SS & DSA-SS/CC] 



OCCUPANCY*, < 



Group A 
1. 



Audi tori urns, convention halls, dance floors, lodge rooms, stadiums, 
and casinos (where no fixed seating is provided) 
(use Vi "one-half the number of fixed seating) 
Conference rooms, dining rooms, drinking establishments, exhibit 
rooms, gymnasiums, lounges, stages, and similar uses, including restau- 
rants classified as Group B occupancies 

Worship places; principal assembly area, educational and activity unit 

(where no fixed seating is provided) 

(use V2 "one-half the number of fixed seating) 



OCCUPANT LOAD FACTOR (square feet) 
(CBC 2001, Table A-29A) 



Group B 



Office or public buildings (area accessible to the public) 



Group E 

Schools for day care, elementary, secondary 
Educational Facilities Other than Group E 

Colleges, universities, adult centers, etc. 

Group F 



Workshops, foundries and similar establishments 



Group H 



Hazardous materials fabrication and storage 



Group I 



Hospital genera] use area, health care facilities 



Group M 



Retail or wholesale stores 



Group R 



Congregate residence, Group R- 1 



Group S 



Warehouse 



15 

30 

30 

200 
50 
50 
2,000 



2,000 



200 



200 



200 



5,000 



Any uses not specifically listed shall be based on similar uses listed in this table. 

For building or space with mixed occupancies, use appropriate occupancy group for each area (for example, a school may have an "A" occupancy for the 
gymnasium, a "B" occupancy for the office, an "E" occupancy for the classrooms, etc.) 
Accessory areas may be excluded (for example: hallway, restroom, stair enclosure) 



64 



2013 CALIFORNIA PLUMBING CODE 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



TABLE 4-2 

[OSHPD 1,2, 3 & 4f 4 MINIMUM PLUMBING FACILITIES 



SPACE 


HANDWASHING SCRUB j 
FIXTURE SINKS 3 


TOILETS 


BATH I UdZ> UH 
SHOWERS 


SERVICE 
SINKS 1 


L/ Li Im lis 

SINKS 


A ((ministration Lobby 














Public Toilet - Male 


I 2 




1 








Public Toilet - Female 


I 2 




1 








Airborne infection isolation room 


! 












Airborne infection isolation anteroom 


j20 












Airborne infection isolation toilet room 


I 2 




r 


I 5 






Cardiac Catheterization procedure room 




j4, 33 










\~Vfilftil Olt-f lit? OllUUl y 


jl5 












Cesave an/Delivery Service Space 














Labor Rooms 


I 33 




i 9 


I 9 






Recovery Room 


I 33 










1 


Tij'ijo /livft'ihi/tinn Ktntinw 


1 












Cesarean operating room 




2 10,33 










Delivery room 




j 10, 33 










Staff lounge 














Staff Toilet - Male 


1 




1:1-15 








Staff Toilet - Female 


1 




1:1-15 








LDR or LDRP room 


I 33 




1 


1 






Waiting area/room 














Public Toilet - Male 


r 




1 








Public Toilet - Female 


I 2 




1 








Clinical Laboratory Service Space 11 


1 












Dietetic Service Space 










1 




Kitchen 














Food serving area 


I 33 












Food Preparation 


I 33 












Dietary Staff Toilet - Male 


l 2 




1:1-15 








Dietary Staff Toilet - Female 


J 2 




1:1-15 








Emergency Service Treatment room 


/ 












Open plan 


1:4 cubicles 












Observation units 


J * A s^ii h\ i is?*} 
I . H C UUlLliZo 












Trauma/Cardiac, Emergency surgery, Cystoscopy, 
Cast Room 




7 4,33 










Intensive Care Units 










1 


1 


Open plan 


1:3 beds 33 












Patient rooms 28 


I 33 












Newborn Intensive Care Unit (NICU) 


1:4 bassinets 17, 33 








1 


1 


Control station 


I 33 












Staff lounge 














StaffToilet-Male 


I 2 




1:1-15 








Staff Toilet - Female 


I 2 




1:1-15 








Employee dressing rooms and lockers 














StaffToilet-Male 


I 2 




1:1-15 









2013 CALIFORNIA PLUMBING CODE 



JANUARY 1, 2014 ERRATA 
BUFF 



G5 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



SPACE 


HA ND WA <5H/JW5 
FIXTURE 


SCRUB 
SINKS 3 


TOILETS 


DM I n I L/DO L/rl 

SHOWERS 


SERVICE 
SINKS 1 


L/LINILr 

SINKS 


Staff' Toilet - Female 


I 2 




1:1-15 








Exam and treatment rooms 


I 












Housekeeping room 1 










1 




Labor at o ries 


i 












Laundry soiled linen, receiving, holding and sorting 


1 












Medicine preparation room 


il9 
V 












irn/t gnu u ft it /i ti i upsy 


1 












Nniiri\hf)ipnt nr/>/i 

; V L/ It f i . 1 (Iff I L f It tff L w 














Nuclear Medicine room 


1 












Mold room 


1 












Patient room 


1 












Patient toilet and bath facilities 13 


I 2 




1:4 beds 


1:12 }6 






Central bathing facility 16 






1 


J 






Administration Center or Nurses 'Stations 27 


1 




I 12 








Newborn/well baby nursery 


1:6 bassinets 33 












Workroom 


i 33 












Gastrointestinal endoscopy procedure room 


i 13 












Pediatric and Adolescent Unit toilet room 


j2.26 




j26 








Pharmacy 


/•'•• 












oiajj loitei - iviaie 


i 2 




1.1 1 c 

1. 1-1 J 








Staff Toilet - Female 


i 2 




1.1 1 c 








( nnmf\t iti/i i lift ru'Oft ffw r\fti'/>ii1/>i'/tl tvi/uh/inc 
\^UfftpiJUrlUltlg UttU fur put LrllLt Lit SUlliltOltS 


i 










Postanesthesia care units (PACU) 










j 


Open plan 


1:4 gurney 
spaces 33 












Individual rooms 


I 33 










Protective environment room 


I 33 












Protective environment anteroom 


j 20.33 












Protective environment toilet room 


1 


f 








Psychiatric unit patient room 


1 




1 








Radiological/Imaging Services Space 


1 




j29 








Computerized tomography (CT) 














Ultrasound 8 






I 30 








Angiography 




j4, 31 










Fluoroscopy^ 






j30 
1 








Staff Toilet - Male 


I 2 




1:1-15 








Staff Toilet 18 - Female 


I 2 




1:1-15 








Rehabilitation Therapy Space 














Training toilet 






1 








Physical therapy service space 


/ 












Occupational therapy service space 


/ 












LjptcLL tl pill ftUlUgy 


; 












Renal Dialysis Service Space 


1:4 stations 








1 




Bloodborne Infection Isolation Room 


1 












Nurses 'station 


1 












Medication dispensing 


1 












Home training room 


1 













66 



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PLUMBING FIXTURES AND FIXTURE FITTINGS 



SPACE 


HAND WA SHING 
FIXTURE 


SCRUB 
SINKS 3 


TOILETS 


BATHTUBS OR 
SHOWERS 


SERVICE 
SINKS 1 


CLINIC 
SINKS 


Repair room 


1 








1 




Dialysis Patient toilet 


1 




1 






Staff lounge 












Staff Toilet -Male 


1 




1:1-15 


1 shower 






Staff Toilet- Female 


1 




1:1-15 


1 shower 






Surgical Service Space 




2 33 






1 




Staff clothing change areas 














StaffToilet-Male 


I 2 




1 


1 shower 






Staff Toilet - Female 


I 2 




1 


1 shower 






Clean-up rooms 


1 












Substerile area 


1 












Anesthesia workroom 


1 












Soiled workroom or soiled holding 


1 










} 34 


Cancer treatmen t/infusion therapy treatment 


1:4 stations 












Utility/Work Room 














Clean 21 


1 












Soded 11 


i 
1 










1 14 
i 


Patient beds [Skilled Nursing/Intermediate Care 
Facilities] [ medical model] 


1 . o 




1:6 


1:20 






Patient toilet and bath facilities 1 * [ Correctional 
Treatment Center] 


1.0 




/ . 


1:12 






Airborne infection isolation anteroom** [Correctional 
Treatment Center] 


1 




1 


l 6 






Airborne injection isolation anteroom [Correctional 
Treatment Center] 


1 












Protective environment room 6 [Correctional Treat- 
ment Center] 


I 6 




I 6 


j6 






Protective environment anteroom [ Correctional 
Treatment Center] 


1 













Notes: 

1 Each department or nursing unit shall be served by a housekeeping room equipped with a service sink. Departments may share service closets provided the 
departmental services are compatible. A dedicated housekeeping room shall be provided for the following services: Surgical/Catherization, ICU, N1CU, 
nursery, dietary, renal dialysis and outpatient surgery. 

2 Conventional spouts and controls on hot-and cold-water supplies are acceptable. Aerators are not permitted. Non-aerating laminar flow devices are permitted. 
II Nourishment areas shall have a handwashing fixture in or immediately accessible from the nourishment area, in addition to a nourishment sink. 

|| 3 Scrub sinks shall be located outside of sterile procedure rooms. A minimum of two scrub sinks shall be provided in a surgical unit containing one operating 
room. Four scrub sinks shall be provided in surgical units containing two operating rooms. One additional scrub sink shall be provided per each additional 
operating room. 

4 The scrub sink is in addition to the required number for surgeries. 

5 The following fixtures shall be provided in airborne infection or protective environment rooms of hospitals only: 

a. Within an adjoining toilet room, a lavatory, a shower containing a seat or a space for a shower chair, and toilet equipped with bedpan flushing attachment 
with a vacuum breaker. 

b. A handwashing fixture within a separate anteroom. 

6 The following fixtures shall be provided in isolation rooms of correctional treatment centers only: 

a. Within an adjoining toilet area, a handwashing fixture, a shower containing a seat or a space for a shower chair, and water closet equipped with bedpan 
flushing attachment with a vacuum breaker. 

b. A handwashing fixture within a separate anteroom. 

7 Includes burn center spaces, acute respiratory-care service spaces, and coronary-care service spaces. 

8 A toilet room with handwashing fixture shall directly adjoin each procedure room. 

9 One toilet with lavatory and one shower may serve two labor rooms. 

II • One additional scrub sink for each additional cesarean or delivery operating room. 

11 Provide emergency eye-wash and shower. 
II 12 Conveniently located for staff use. 

13 Fixtures serving individual patient rooms shall not be considered as meeting the required ratios for bedrooms not served by individual adjoining toilet or bath- 
rooms. 

14 The clinic sink may be deleted if all bedrooms in the nursing unit are provided with adjoining toilets with bedpan flushing devices. 

1 5 Conventional controls on hot-and cold-water supplies are acceptable. The water discharge points shall be 5 inches (127 millimeters) above the fixture rim. 
Aerators are not permitted. Non-aerating laminar flow devices are permitted. 



2013 CALIFORNIA PLUMBING CODE 



JANUARY 1,2014 ERRATA 
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G7 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



16 A minimum of one bathtub is required on each floor of an acute care or acute psychiatric hospital providing skilled nursing or intermediate care services. 
II Special bathing facilities/gurney shower shall be provided at a minimum ratio of one per 100 beds for acute care facilities. 

In a multiple-bed room, every bed position shall be within 20 feet (6 meters) of a hands-free handwashing fixture. Where an individual room concept is used, 
a handwashing fixture shall be provided within each infant care room. 

18 When three or more procedure moms are provided. 

19 If a separate medicine room is provided, the room shall be equipped with a sink in addition to the nurses' station handwashing fixture. Hot-water supplies 
are optional. 

20 Not required when there is a handwash fixture in the patient bed room. 

21 Handwashing fixtures may be deleted if room is used for storage and holding only. 

22 If room is used only for temporary holding of soiled materials, clinic sink and work counter may be omitted. If the flushing-rim clinical sink is eliminated, 
facilities for cleaning bedpans shall be provided elsewhere. 

23 Toilet shall be equipped with a bedpan flushing attachment. 

24 Optional services approved by the licensing agency shall comply with the applicable space requirements ofOSHPD 1 and 2. 

25 Shall be provided in each separate room where open medication is handled. 

26 Conveniently accessible throughout the unit. 

27 Includes rooms or areas within coronary and intensive-care units and postanethesia recovery rooms. 
Modular toilet/sink combination units located within a privacy curtain may be used within individual patient space or private room. The toilet fixture shall 
II be completely contained within cabinetry when not in use, and shall be enclosed when flushed. Bedpan washers shall not be permitted in patient bedrooms. 
In service spaces with procedure rooms that do not have dedicated patient toilets, provide a minimum of one patient toilet room with a separate handwash- 
ing fixture within the service space. 

30 Toilet room shall be accessible from the procedure room. 

31 Scrub sink shall be located outside the staff entrance to the procedure room. 

32 Not used. 

33 Handwashing and scrub sink fixtures shall not be equipped with wrist or elbow blades but shall be equipped with sensor controls, or controls that do not 
involve contact with the upper extremities. 

34 If room is used only for temporary holding of soiled material, clinic sink and work counter may be omitted. 



TABLE 4-3 



TYPE OF BUILDING 
OR OCCUPANCY 


WATER CLOSETS 
(FIXTURES PER PERSON) 


URINALS (TROUGH URINAL 
TO INDIVIDUAL 
URINAL EQUIVALENCE) 
MALE 


LAVATORIES 
(FIXTURES 
PER PERSON) 


BATHTUBS OR SHOWERS 
FIXTURES PER PERSON) 7 


DRINKING 
FOUNTAINS 
(FIXTURES 

PER PERSON) 3 


MALE FEMALE 


Nonindustrial — office 
buildings, public build- 
ings and similar estab- 
lishments 


1 1-15 1 1-15 

2 16-35 2 16-35 

3 36-55 3 36-55 

4 56-80 4 56-80 

5 81-110 5 81-110 

6 111-150 6 111-150 
1 additional for each 
additional 40 employees 
or fraction thereof 


Length of Number of 
trough urinal individual 
urinals 

24" (610 mm) I 
36" (914 mm) 2 
48" (1219 mm) 2 
60" (1524 mm) 3 


1 1-15 

2 16-35 

3 36-60 

4 61-90 

5 91-125 

1 additional for each 
additional 4 employ- 
ees or fraction thereof 


1:10 persons per shift 
required to shower 




Industrial-factories, 
warehouses, loft build- 
ings and similar estab- 
lishments 


1 1-15 1 1-15 

2 16-35 2 16-35 

3 36-55 3 36-55 

4 56-80 4 56-80 

5 81-110 5 81-110 

6 111-150 6 111-150 
1 additional for each 
additional 40 employees 
or fraction thereof 


24" (610 mm) 1 
36" (914 mm) 2 
48" (1219 mm) 2 
60" (1524 mm) 3 
72" (1829 mm) 4 


1 to 100 
employees 
1 per 10 

Over 100 employees 1 
additional for each 
additional 15 employ- 
ees or fraction thereof 


1:10 persons per shift 
required to shower 





Notes: 

1 The figures shown are based on one fixture being the minimum required for the number of persons indicated or any fraction thereof. 

2 Each water closet shall occupy a separate compartment which shall be equipped with a door, door latch and clothes hook. The door and the walls or partitions between 
fixtures shall be sufficient to assure privacy. 

3 Drinking fountains shall not be located in toilet rooms. 

4 Washing facilities shall be reasonably accessible to all employees. 

5 Toilet facilities shall be accessible to the employees at all times. Where practicable, toilet facilities should be within 200 feet (61 m) of locations at which workers are reg- 
ularly employed and should not be more than one floor-to floor flight of stairs from working areas. 

6 Urinals may be installed instead of water closets in toilet rooms to be used only by men provided that the number of water closets shall not be less than two thirds of the 
minimum number of toilet facilities specified. The length of trough urinals to the equivalent number of individual urinals shall be based on the above table. 

7 When there are less than five employees, separate toilet rooms for each sex are not required provided toilet rooms can be locked from the inside and contain at least one 
water closet. 

8 Twenty-four linear inches of wash sink or 18 inches of circular basin, when provided with water outlets for such space, shall be considered equivalent to one lavatory. 
Exception: The requirements of Table 4-3 do not apply to mobile crews or to normally unattended work locations provided employees at these locations have immediately 
available transportation to nearby toilet facilities which meet the requirements of Table 4-3. 



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PLUMBING FIXTURES AND FIXTURE FITTINGS 



TABLE 4-4 



TYPE OF BUILDING 
OR OCCUPANCY 2 

Day Use Public 
Beaches L2 \ 



: Picnic Areas 

Overnight Use 
Public Beaches 2 



WATER CLOSETS 
(FIXTURES PER PERSON) 

Male Female 
I 1-100 1 1-100 
No sex designated 
1 1-500 
Minimum of 2 

Male Female 
1 1-50 1 1-50 

1 1-7.5 campsites- 
1 1-7.5 campsites ' 



! Organized Camps \ I I -15 s 
Notes: 



URINALS 
(FIXTURES PER MALE) 

May be substituted for 
up to two-thirds of the 
water closets required 



May be substituted for 
up to one-third of the 
water closets required" 



LAVATORIES 
(FIXTURES PER PERSON) 



BATHTUBS OR SHOWERS 



I I 1-15 



DRINKING FOUNTAINS 



(FIXTURES PER PERSON) \ (FIXTURES PER PERSON) 



1 1-12.5 campsites ' 



1 1-156 



Minimum I per camp 



Toilets shall, be located in accordance with actual use patterns on the beach. The reasonable intent of the toilet requirements is thai it should apply on the basis of aver- 
age daily use during periods of peak use. The health officer may determine how many days the population standard may be exceeded. 
Laundry facilities are not required, but if they are provided, must be a minimum of two laundry trays or a washing machine. 
Toilet facilities shall not be farther than 400 feet from any lot or campsite. 

Showers are not required, but it provided, they shall be provided on the indicated ratio. Outdoor rinse-off showers may be cold water only. 
Toilets shall be located within 300 feet from the living accommodations they serve. 
Showers shall be provided in the living area, or in a. centrally located structure. 

Exception: Intermittent short-term organized camps are not required to provide shower facilities, but it provided, they shall comply with this part. 



2013 CALIFORNIA PLUMBING CODE 



69 



2013 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 5 - WATER HEATERS 

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 

HCD ! DSA OSHPD 

3 j 4 

x i x 



Adopting Agency 


BSC 


SFM 


1 


2 


1-AC 


AC 


ss 


ss/cc 


1 


Adopt Entire Chapter 


X ] 










X 


X 


X 


Adopt Entire Chapter as amended 
(amended sections listed below) 




x 


X 


X 












Adopt only those sections that are 




















listed below 




















Chapter/Section 




















507.2 




X 


X 


*! : L ^ 







BSCCI DPH | AGR DWR CA SL SLC 



2013 CALIFORNIA PLUMBING CODE 



71 



2013 CALIFORNIA PLUMBING CODE 



CHAPTER 5 

WATER HEATERS 



501.0 General 

501.1 Applicability. The regulations of this chapter shall gov- 
ern the construction , location, and installation of fuel-burning 
and other water heaters heating potable water, together with 
chimneys, vents, and their connectors. The minimum capac- 

j ity for storage water heaters shall be in accordance with the 
first hour rating listed in Table 501.1. Design, construction, 
and workmanship shall be in accordance with accepted engi- 

I neering practices, manufacturer's instructions, and applica- 
ble standards and shall be of such character as to secure the 
results sought to be obtained by this code. No water heater 

| shall be hereinafter installed that does not comply with the 
type and model of each size thereof approved by the Author- 
ity Having Jurisdiction. A list of accepted gas appliance stan- 
dards are referenced in Table 1401.1 . 

502.0 Permits. 

502.1 General. It shall be unlawful for a person to install, 
remove, or replace or cause to be installed, removed, or 
replaced a water heater without first obtaining a permit from 
the Authority Having jurisdiction to do so. 

503.0 Inspection. 

503.1 Inspection of Chimneys or Vents. This inspection 
shall be made after chimneys, vents, or parts thereof, author- 
ized by the permit, have been installed and before such vent 
or part thereof has been covered or concealed. 

503.2 Final Water Heater Inspection. This inspection shall 
be made after work authorized by the permit has been 
installed. The Authority Having Jurisdiction will make such 
inspection as deemed necessary to be assured that the work 
has been installed in accordance with the intent of this code. 
No appliance or part thereof shall be covered or concealed 
until the same has been inspected and approved by the 
Authority Having Jurisdiction. 

504.0 Water Heater Requirements. 

504.1 Location. Water heater installations in bedrooms and 
bathrooms shal l be in accordance with one of the following 
[NFPA 54:10.28.1]: 



(1) Fuel -burning water heaters shall be permitted to be 
installed in a closet located in the bedroom or bathroom 
provided the closet is equipped with a listed, gasketed 
door assembly and a listed self-closing device. The self- 
closing door assembly shall meet the requirements of 
Section 504.1.1. The door assembly shall be installed 
with a threshold and bottom door seal and shall meet the 
requirements of Section 504.1.2. Combustion air for such 
installations shall be obtained from the outdoors in accor- 
dance with Section 506.4. The closet shall be for the 
exclusive use of the water heater. 

(2) Water heater shall be of the direct vent type. [NFPA 
54:10.28.1(2)] 

504.1.1 Self-Closing Doors. Self-closing doors shall 
swing easily and freely and shall be equipped with a self- 
closing device to cause the door to close and latch each 
time it is opened. The closing mechanism shall not have 
a hold-open feature. [NFPA 80:6. 1 .4.2] 

504.1.2 Gasketlng. Gasketing on gasketed doors or 
frames shall be furnished in accordance with the pub- 
lished listings of the door, frame, or gasketing material 
manufacturer. [NFPA 80:6.4.8] 

Exception: Where acceptable to the Authority Having 
jurisdiction, gasketing of non-combustible or limited- 
combustible material shall be permitted to be applied to I 
the frame, provided closing and latching of the door are 
not inhibited. 

504.2 Vent. Water heaters of other than the direct-vent type 
shall be located as close as practical to the chimney or gas 
vent. 

504.3 Clearance. 

504.3.1 Listed Water Heaters. The clearances shall not 
be such as to interfere with combustion air, draft hood 
clearance and relief, and accessibility for servicing. 
Listed water heaters shall be installed in accordance with 
their listings and the manufacturer's installation instruc- j 
tions. [NFPA 54: 10.28.2.1] 

504.3.2 Unlisted Water Heaters. Unlisted water heaters 
shall be installed with a clearance of 12 inches (305 mm) 
on all sides and rear. Combustible floors under unlisted 
water heaters shall be protected in an approved manner. 
[NFPA 54: 10.28.2.2] 



TABLE 501.1 
FIRST HOUR RATING 1 



Number of Bathrooms 




1 to 1.5 






2 to 2.5 




3 to 3.5 


Number of Bedrooms 


1 


2 


3 


2 


3 4 


5 


3 


4 ; 5 


6 


First Hour Rating, 2 Gallons 


' 42 


54 


54 


54 


67 " 67 


80 


67 


80 80 


80 



For SI units: I gallon = 3.785 L 



Notes: 

1 The first hour rating is found on the "Energy Guide" label. 
| 2 Solar water heaters shall be sized to meet the appropriate first hour rating as shown in the table. 



2013 CALIFORNIA PLUMBING CODE 



73 



WATER HEATERS 



504.4 Pressure-Limiting Devices. A water heater installa- 
tion shall be provided with overpressure protection by means 
of an approved, l isted device installed in accordance with the 

| terms of its listing and the manufacturer's installation instruc- 
tions. [NFPA 54: 10.28.3] 

504.5 Temperature- Li m sting Devices. A water heater instal- 
lation or a hot water storage vessel installation shall be pro- 
vided with over temperature protection by means of an 
approved, listed device installed in accordance with the terms 

| of its listing and the manufacturer's installation instructions. 
[NFPA 54:10.28.4] 

504.6 Temperature, Pressure, and Vacuum Relief Devices. 
The installation of temperature, pressure, and vacuum relief 
devices or combinations thereof, and automatic gas shutoff 
devices, shall be installed in accordance with the terms of 

| their listings and the manufacturer's installation instructions. 
A shutoff valve shall not be placed between the relief valve 
and the water heater or on discharge pipes between such 
valves and the atmosphere. The hourly British thermal units 
(Btu) (kW*h) discharge capacity or the rated steam relief 
capacity of the device shal l be not less than the input rating of 
the water heater. [NFPA 54: 1 0.28.5] 

505.0 Oil-Burning and Other Water Heaters. 

505.1 Water Heaters. Water heaters deriving heat from fuels 
or types of energy other than gas shall be constructed and 
installed in accordance with approved standards. Vents or 
chimneys for such appliances shall be approved types. An 
adequate supply of air for combustion and for adequate ven- 
tilation of heater rooms or compartments shall be provided. 
Each such appliance shall be installed in a location approved 
by the Authority Having Jurisdiction and local and state fire- 
prevention agencies. 

505.2 Safety Devices. Storage-type water heaters and hot 
water boilers deriving heat from fuels or types of energy other 
than gas, shall be provided with, in addition to the primary 
temperature controls, an over temperature safety protection 
device constructed, listed, and installed in accordance with 
nationally recognized applicable standards for such devices 
and a combination temperature and pressure-relief valve. 

505.3 Oil- Fired Water Heaters. Oil-fired water heaters shall 
be installed in accordance with NFPA 3 1. 

505.4 Indirect-Fired Water Heaters. Indirect-Fired water 
heaters shall comply with the applicable sections of the 
ASM E Boiler and Pressure Vessel Code, or to one of the other 
applicable standards shown in Table 1401.1. Each water 
heater shall bear a label in accordance with ASME require- 
ments, or an approved testing agency, certifying and attest- 
ing that such an appliance has been tested, inspected and 
meets the requirements of the applicable standards or code. 

505.4.1 Single-Wall Heat Exchanger, Indirect-Fired 
water heater that incorporate a single-wall heat 
exchanger shall meet the following requirements: 

(1) Connected to a low-pressure hot water boiler lim- 
ited to a maximum of 30 pounds-force per square 
inch gauge (psig) (207 kPa) by an approved safety or 
relief valve. 



(2) Heater transfer medium is either potable water or con- 
tains fluids having a toxicity rating or Class of 1. 

(3) Bear a label with the word "Caution," followed by 
the following statements: 

(a) The heat-transfer medium shall be water or 
other nontoxic fluid having a toxic rating or 
Class of 1 as listed in Clinical Toxicology of 
Commercial Products, 5th edition. 

(b) The pressure of the heat-transfer medium shall 
be limited to a maximum of 30 psig (207 kPa) 
by an approved safety or relief valve. 

The word "Caution" and the statements in 
letters shall have an uppercase height of not less 
than 0.120 of an inch (3.048 mm). The vertical 
spacing between lines of type shall be not less 
than 0.046 of an inch (1.168 mm). Lowercase 
letters shall be compatible with the uppercase 
letter size specification. 

506.0 Air for Combustion and Ventilation, 

506.1 General. Air For combustion, ventilation, and dilution 
oF flue gases For appliances installed in buildings shall be 1 
obtained by application oF one oF the methods covered in Sec- 
tion 506.2.1 through Section 506.7.3. Where infiltration does [ 
not provide the necessary air, outdoor air shall be introduced 
in accordance with methods covered in Section 506.4 through 
Section 506.7.3. 

Exception: This provision shall not apply to direct-vent 
appliances. [NFPA 54:9.3.1 .1] 

506.1.1 Other Types of Appliances. Appliances oF other | 
than natural draFt design and other than Category I vented 
appliances shall be provided with combustion, ventila- 
tion, and dilution air in accordance with the appliance 
manufacturer's instructions. [NFPA 54:9.3 1.2] 

506.1.2 Draft Hood and Regulators. Where used, a 
draft hood or a barometric draft regulator shall be 
installed in the same room or enclosure as the appliance 
served so as to prevent a difference in pressure between 
the hood or regulator and the combustion air supply. 
[NFPA 54:9.3.1.4] 

506.1.3 Makeup Air. Where exhaust Fans, clothes dry- 
ers, and kitchen ventilation systems interfere with the 
operation of appliances, makeup air shall be provided. 
[NFPA 54:9.3. 1.5] 

506.2 Indoor Combustion Air. The required volume oF 
indoor air shall be determined in accordance with Section 
506.2.1 or Section 506.2.2 except that where the air infiltra- 
tion rate is known to be less than 0.40 ACH (air change per 
hour), Section 506.2.2 shall be used. The total required vol- 
ume shall be the sum oF the required volume calculated for 
appliances located within the space. Rooms communicating 
directly with the space in which the appliances are installed 
through openings not furnished with doors, and through com- 
bustion air openings sized and located in accordance with 



74 



2013 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



Section 506.3 are considered a part of the required volume. 
[NFPA 54:9.3.2] 

506.2.1 Standard Method. The required volume shall 
be not less than 50 cubic feet per 1000 British thermal 
units per hour (Btu/h) (4.83 m-VkW). [NFPA 54:9.3.2.1] 

506.2.2 Known Air Infiltration Rate Method. Where 
the air infiltration rate of a structure is known, the mini- 
mum required volume shall be determined as follows 
[NFPA 54:9.3.2.2]: 

(1) For appliances having other than fan-assisted com- 
bustion systems, calculate using Equation 

I 506.2.2(1). [NFPA 54:9.3.2.2(1)] 

(2) For fan-assisted combustion system appliances, cal- 
I dilate using Equation 506.2.2(2). [NFPA 

54:9.3.2.2(2)] 

(3) For purpose of this calculation, an infiltration rate 
greater than 0.60 ACH shall not be used in the equa- 
tions. [NFPA 54:9.3.2.2(3)] 

[Equation 506.2.2(1 )] 

Required volume other > (21 ft 3 I ACH) x (1^/1000 
Btu/h) 

[Equation 506.2.2(2)] 
Required volume j an > (15 ft 3 /ACH) x (1^/1 000 Btu/h) 

Where: 

^ other = Appliances other than fan-assisted input in 
Btu/h 

\j an = Fan-assisted appliance input in Btu/h 
ACH = Air change per hour (percent of volume of 
space exchanged per hour, expressed as a deci- 
mal) 

For SI units: 1 cubic foot = 0.0283 m 3 , 1000 British thermal units per 
hour - 0.293 kW 



506.3 Indoor Opening Size and Location. Openings used 
to connect indoor spaces shall be sized and located in accor- 
dance with the following: 

I (1) Each opening shall have a free area of not less than 1 
square inch per 1000 Btu/h (0.002 m 2 /kW) of the total 

I input rating of appliances in the space, but not less than 
100 square inches (0.065 m 2 ). One opening shall com- 
mence within 12 inches (305 mm) of the top, and one 
opening shall commence within 12 inches (305 mm) of 
the bottom of the enclosure (see Figure 506.3). The 
dimension of air openings shall be not less than 3 inches 
(76 mm). 

! (2) The volumes of spaces in different stories shall be con- 
sidered as communicating spaces where such spaces are 
connected by one or more openings in doors or floors 
having a total free area of not less than 2 square i nches 
per 1000 Btu/h (0.004 m 2 /kW) of total input rating of 

I appliances. [NFPA 54:9.3.2.3] 



506.4 Outdoor Combustion Air. Outdoor combustion air 
shall be provided through opening(s) to the outdoors in accor- 
dance with methods in Section 506.4.1 or Section 506.4.2. 
The dimension of air openings shall be not less than 3 inches 
(76 mm). [NFPA 54:9.3.3] 

506.4.1 Two Permanent Openings Method. Two per- 
manent openings, one commencing within 1 2 inches (305 
mm) of the top and one commencing within 12 inches 
(305 mm) of the bottom of the enclosure shal l be pro- 
vided. The openings shall communicate directly, or by 
ducts, with the outdoors or spaces that freely communi- 
cate with the outdoors as follows: 

(1) Where directly communicating with the outdoors or 
where communicating to the outdoors through ver- 
tical ducts, each opening shall have a free area of not 
less than 1 square inch per 4000 Btu/h (0.0005 
m 2 /kW) of total input rating of appliances in the 
enclosure. [See Figure 506.4(1) and Figure 506.4(2)] 

(2) Where communicating with the outdoors through 
horizontal ducts, each opening shall have a free area 
of not less than 1 square inch per 2000 Btu/h (0.00 1 
m 2 /kW) of total input rating of appliances in the 
enclosure. [See Figure 506.4(3)] [NFPA 54:9.3.3.1] 

506.4.2 One Permanent Opening Method. One per- 
manent opening, commencing within 12 inches (305 
mm) of the top of the enclosure, shall be provided. The 
appliance shall have clearances of not less than 1 inch 
(25.4 mm) from the sides and back and 6 inches (152 
mm) from the front of the appliance. The opening shall 



Chimney or gas vent 




Opening 



Opening 



I 



FIGURE 506.3 

COMBUSTION AIR FROM ADJACENT INDOOR SPACES 
THROUGH INDOOR COMBUSTION AIR OPENINGS 
[NFPA 54: FIGURE A.9.3.2.3(1)] 



2013 CALIFORNIA PLUMBING CODE 



75 



WATER HEATERS 



Chimney or gas vent 



Ventilation louvers 
(each end of attic) 




L- Ventilation louvers for — 1 
un heated crawl space 

FIGURE 506.4(1) 
COMBUSTION AIR FROM OUTDOORS 
INLET ASR FROM VENTILATED CRAWL SPACE AND 
OUTLET AIR TO VENTILATED ATTIC 
[NFPA54: FIGURE A.9.3.3.1(1)(a)] 



- Chimney or gas vent 




FIGURE 506.4(3) 
COMBUSTION AIR FROM 
OUTDOORS THROUGH HORIZONTAL DUCTS 
[NFPA 54: FIGURE A.9.3.3.1(2)] 



Chimney or gas vent 



Ventilation louvers 
(each end of attic) 




Inlet air duct 
[ends 1 foot 
above floor] 



1 t \ 1 .,1,1,1,1, L-JL 



xzr 



Chimney or gas vent 



1111 




— Opening 

Alternate 
opening 
location 



For SI units: 1 foot = 304.8 mm 



FIGURE 506.4(2) 
COMBUSTION AIR FROM OUTDOORS 
THROUGH VENTILATED ATTIC 
[NFPA 54: FIGURE A.9.3.3.1(1)(b)] 



FIGURE 506.4.2 
COMBUSTION ASR FROM OUTDOORS THROUGH 
SINGLE COMBUSTION AIR OPENING 
[NFPA 54: FIGURE A.9.3.3.2] 



76 



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directly communicate with the outdoors or shall com- 
municate through a vertical or horizontal duct to the out- 
doors or spaces that freely communicate with the 
outdoors (see Figure 506.4.2) and shall have a minimum 
free area of the following: 

(1 ) One square inch per 3000 Btu/h (0.0007 m 2 /kW) of 
the total input rating of appliances located in the 
enclosure, and 

(2) Not less than the sum of the areas of vent connectors 
in the space. [NFPA 54:9.3.3.2] 

506.5 Combination I ndoor and Outdoor Combustion Air. 
The use of a combination of indoor and outdoor combustion 
air shall be in accordance with Section 506.5.1, Section 

§ 506.5.2, and Section 506.5.3 (see Appendix J). [NFPA 
54:9.3.4] 

506.5.1 Indoor Openings. Where used, openings con- 
necting the interior spaces shall be in accordance with 
Section 506.3. [NFPA 54:9.3.4(1)] 

506.5.2 Outdoor Openings. Outdoor openings shall be 
located in accordance with Section 506.4.1 or Section 
506.4.2. [NFPA 54:9.3.4(2)] 

506.5.3 Outdoor Openings Size. The outdoor openings 
size shall be calculated in accordance with the following: 

| (1) The ratio of interior spaces shall be the volume of 
communicating spaces divided by the volume. 

(2) The outdoor size reduction factor shall be one minus 
the ratio of interior spaces. 

(3) The minimum size of outdoor openings shall be the 
full size of outdoor openings calculated in accor- 
dance with Section 506.4. 1 or Section 506.4.2, mul- 
tiplied by the reduction factor. The dimension of air 
openings shall be not less than 3 inches (76 mm). 
[NFPA 54:9.3.4(3)] 

506.6 Engineered Installations. Engineered combustion air 
installations shall provide a supply of combustion, ventila- 
tion, and dilution air that is approved by the Authority Hav- 
ing jurisdiction. [NFPA 54:9.3.5] 

506.7 Mechanical Combustion Air Supply. Where com- 
bustion air is provided by a mechanical air supply system, the 
combustion air shall be supplied from outdoors at the mini- 
mum rate of 0.35 cubic feet per mi nute per 1 000 Btu/h [0.034 
(m 3 /min)/kW] for appliances located within the space. [NFPA 
54:9.3.6] 

506.7.1 Exhaust Fans. Where exhaust fans are installed, 
additional air shall be provided to replace the exhausted 
air. [NFPA 54:9.3.6.1] 

506.7.2 Interlock. Each of the appliances served shall 
be interlocked to the mechanical air supply system to pre- 
vent main burner operation where the mechanical air 
supply system is not in operation. [NFPA 54:9.3.6.2] 

506.7.3 Specified Combustion Air. Where combustion 
air is provided by the building's mechanical ventilation 
system, the system shall provide the specified combus- 
tion air rate in addition to the required ventilation air. 
[NFPA 54:9.3.6.3] 



506.8 Louvers, Grilles, and Screens. The required size of 
openings for combustion, ventilation, and dilution air shall 
be based on the net free area of each opening. Where the free 
area through a design of louver or grille is known, it shall be 
used in calculating the size opening required to provide the 
free area specified. Where the design and free area are not 
known, it shall be assumed that wood louvers have 25 per- 
cent free area and metal louvers and grilles have 75 percent 
free area. Nonmotorized louvers and grilles shall be fixed in 
the open position. [NFPA 54:9.3.7.1] 

506.8.1 Minimum Screen Mesh Size. Screens shall be 
not less than Va of an inch (6.4 mm) mesh. [NFPA 
54:9.3.7.2] 

506.8.2 Motorized Louvers. Motorized louvers shall be 
interlocked with the appliance so they are proven in the 
full open position prior to main burner ignition and dur- 
ing main burner operation. Means shall be provided to 
prevent the main burner from igniting where the louver 
fail to open during burner start-up and to shut down the 
main burner where the louvers close during burner oper- 
ation. [NFPA 54:9.3.7.3] 

506.9 Combustion Air Ducts. Combustion air ducts shall 
comply with the following [NFPA 54:9.3.8]: 

(1) Ducts shall be of galvanized steel or a material having 
equivalent corrosion resistance, strength, and rigidity. 

Exception: Within dwelling units, unobstructed stud and 
joist spaces shall not be prohibited from conveying com- 
bustion air, provided that not more than one fireblock is 
removed. [NFPA 54:9.3.8. 1] 

(2) Ducts shall terminate in an unobstructed space, allowing 
free movement of combustion air to the appliances. 
[NFPA 54:9.3.8.2] 

(3) Ducts shall serve a single space. [NFPA 54:9.3.8.3] 

(4) Ducts shall not service both upper and lower combustion 
air openings where both such openings are used. The sep- 
aration between ducts serving upper and lower combus- 
tion air openings shall be maintained to the source of 
combustion air. [NFPA 54:9.3.8.4] 

(5) Ducts shall not be screened where terminating in an attic 
space. [NFPA 54:9.3.8.5] 

(6) Combustion air intake openings located on the exterior of S 
the building shall have the lowest side of the combustion 
air intake openings located not less than 12 inches (305 
mm) vertically from the adjoining finished ground level. | 
[NFPA 54:9.3.8.8] 

(7) Horizontal upper combustion air ducts shall not slope 
downward toward the source of combustion air. [NFPA 
54:9.3.8.6] 

(8) The remaining space surrounding a chimney liner, gas 
vent, special gas vent, or plastic piping installed within a 
masonry chimney flue, metal or factory-built chimney, 
shall not be used to supply combustion air unless it is S 
listed and shown in the manufacturer's installation 
instructions. [NFPA 54:9.3.8.7] 



2013 CALIFORNIA PLUMBING CODE 



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507.0 Other Water Heater Installation Requirements. 

507.1 Dielectric Insulator. The Authority Having Jurisdic- 
tion shall have the authority to require the use of an approved 
dielectric insulator on the water piping connections of water 
heaters and related water heating appliances. 

| 507.1.1 Support of Appliances. Appliances shall be fur- 
nished either with load-distributing bases or with an 

1 approved number of supports to prevent damage to either 
the building structure or appliance. [NFPA 54:9.1.8.3] 

|| 507.2 Seismic Provisions. Water heaters shall he anchored 
or strapped to resist horizontal displacement due to earth- 
quake motion. Strapping shall he at points within the upper 
one third ( l f>) and lower one-third of its vertical dimen- 
sions. At the lower point, a minimum distance of four (4) 
inches (1 02 mm) shall be maintained above the controls with 
the strapping. 

Note: fHCD 1 & HCD 2] Reference Health and Safety Code 
Section 19211(a) which addresses new\ replacement, and 
existing water heaters. 

Note: The applicable subsection of Health and Safety Code Sec- 
tion 19211(a) which addresses new, replacement, and existing 
water heaters is repeated here for clarity and reads as follows: 

Section 192 1 1 (a) Notwithstanding Section 19100, all new 
and replacement water heaters, and all existing residential 
water heaters shall be braced, anchored, or strapped to resist 
falling or horizontal displacement due to earthquake motion. 
At a minimum, any water heater shall be secured in accor- 
dance with the California, Plumbing Code, or modifications 
made thereto by a city, county, or city and county pursuant to 
Section 17958.5. 

507.2.1 Structural Capacity. At the locations selected for 
S installation of the appliances and equipment, the dynamic 
and static load-carrying capacities of the building struc- 
ture shall be checked to determine whether they are capa- 
ble to carry the additional loads. The appliance shall be 
supported and shall be connected to the piping so as not to 
exert undue stress on the connections. [NFPA 54:9.1 .8.4] 

507.3 Ground Support. A water heater supported from the 
ground shall rest on level concrete or other approved base 
extending not less than 3 inches (76 mm) above the adjoining 
ground level. 

507.4 Drainage Pan. Where a water heater is located in an 
attic, attic-ceiling assembly, floor-ceiling assembly, or floor- 
subfloor assembly where damage results from a leaking water 
heater, a watertight pan of corrosion-resistant materials shall 
be installed beneath the water heater with not less than "A of 
an inch (20 mm) diameter drain to an approved location. 

507.5 Relief Valve Discharge. Discharge from a relief valve 
into a water heater pan shall be prohibited. 

507.6 Added or Converted Appliances. Where an additional 
or replacement appliance is installed or an appliance is con- 
verted to gas from another fuel, the location in which the 
appliance is to be operated shall be checked to verify the fol- 
lowing [NFPA 54:9.1.2]: 

(1) Air for combustion and ventilation is provided where 
required, in accordance with the provisions of Section 
506.0. Where existing facilities are not adequate, they 



shall be upgraded to Section 506.0 specifications. [NFPA 
54:9.1.2(1)] 

(2) The installation components and appliances shall be 
installed with clearances from combustible material so 
their operation will not create a hazard to persons or 
property. Minimum clearances between combustible 
walls and the back and sides of various conventional 
types of appliances and their vent connectors are speci- 
fied in Table 509.7.3 and Table 509.7.3(1). [NFPA 
54:9.2.2]. It shall be determined that the installation and 
operation of the additional or replacement appliance does 
not render the remaining appliance unsafe for continued 
operation. [NFPA 54:9. 1 .2(2)] 

(3) The venting system is constructed and sized in accor- 
dance with the provisions of this chapter. Where the exist- 
ing venting system is not adequate, it shall be upgraded in 
accordance with this chapter [NFPA 54:9. 1 .2(3)] 

507.7 Types of Gases. The appliance shall be connected to 1 
the fuel gas for which it was designed. No attempt shall be 1 
made to convert the appliance from the gas specified on the 
rating plate for use with a different gas without consulting the 
installation instructions, the serving gas supplier, or the appli- 
ance manufacturer for complete instructions. [NFPA 54- 
12:9.1.3] 

507.8 Safety Shutoff Devices for Unlisted LP-Gas Appli- 
ance Used Indoors. Unlisted appliances for use with undi- S 
luted liquefied petroleum gases and installed indoors shall be 
equipped with safety shutoff devices of the complete shutoff 
type. [NFPA 54:9.1.4] 

507.9 Use of Air or Oxygen Under Pressure. Where air or 
oxygen under pressure is used in connection with the gas sup- 
ply, effective means such as a backpressure regulator and 
relief valve shall be provided to prevent air or oxygen from 
passing back into the gas piping. Where oxygen is used, 
installation shall be in accordance with NFPA 51. [NFPA 
54:9.1.5] 

507.10 Protection of Gas Appliances from Fumes or Gases 
other than Products of Combustion. Non-direct vent-type 
gas appliances installed in beauty shops, barbershops, or other 
facilities where chemicals that generate corrosive or flam- 
mable products such as aerosol sprays are routinely used shall 
be located in an equipment room separate or partitioned off 
from other areas with provisions for combustion and dilution 
air from outdoors. Direct vent appliances shall be installed in 
accordance with the appliance manufacturer's installation 
instructions. [NFPA 54:9. 1 .6.2] 

507.11 Process Air. In addition to air needed for combustion 
in commercial or industrial processes, process air shall be pro- 
vided as required for cooling of equipment or material, con- 
trolling dew point, heating, drying, oxidation, dilution, safety 
exhaust, odor control, air for compressors, and for comfort 
and proper working conditions for personnel. [NFPA 
54:9.1.7] 

507.12 Flammable Vapors. Gas appliances shall not be 
installed in areas where the open use, handling, or dispensing 
of flammable liquids occurs, unless the design, operation, or 
installation reduces the potential of ignition of the flamma- 
ble vapors. Appliances installed in accordance with Section i 



78 



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507.13, Section 507.14, or Section 507.1.5 shall be consid- 
ered to be in accordance with the intent of this provision. 
[NFPA 54:9.1.9] 

| 507.13 Installation in Garages. Appliances in garages and in 
adjacen t spaces that open to the garage and are not part of the 
living space of a dwelling unit shall be installed so that burn- 
ers and burner-ignition devices are located not less than 18 
inches (457 mm) above the floor unless listed as flammable 
vapor ignition resistant. [NFPA 54:9.1.10. 1] 

507.13.1 Physical Damage. Appliances installed in 
garages, warehouses, or other areas subject to mechani- 
cal damage shall be guarded against such damage by 
being installed behind protective barriers or by being ele- 
vated or located out of the normal path of vehicles. 

507.13.2 Access from the Outside Only. Where such 
appliances installed within a garage are enclosed in a sep- 
arate, approved compartment having access only from 
outside of the garage, such appliances shall be permitted 
to be installed at floor level, provided the required com- 
bustion air is taken from and discharged to the exterior of 
the garage. [NFPA 54:9.1.10.3] 

507.14 Installation in Commercial Garages. 

| 507.14.1 Parking Structures. Appliances installed in 
enclosed, basement, and underground parking structures 
shall be installed in accordance with NFPA 88A. [NFPA 
54:9.1.11.1] 

| 507.14.2 Repair Garages. Appliances installed in repair 
garages shall be installed in a detached building or room, 
separated from repair areas by walls or partitions, floors, 
or floor-ceiling assemblies that are constructed so as to 
prohibit the transmission of vapors and having a fire- 
resistance rating of not less than 1 hour, and that have no 
openings in the wall separating the repair area within 8 
feet (2438 mm) of the floor. Wall penetrations shall be 
firestopped. Air for combustion purposes shall be 
obtained from outside the building. The heating room 
shall not be used for the storage of combustible materials. 

Exceptions: 

(1) Overhead heaters where installed not less than 8 feet 
(2438 mm) above the floor shall be permitted. 

(2) Heating appliances for vehicle repair areas where 
there is no dispensing or transferring of Class I or 
Class II flammable or combustible liquids or lique- 
fied petroleum gas shall be installed in accordance 
with NFPA 30A. [NFPA 54:9. 1.11 .2] 

507.15 Installation in Aircraft Hangars. Heaters in aircraft 
hangars shall be installed in accordance with NFPA 409. 
[NFPA 54:9.1.12] 

1507.16 Venting of Flue Gases. Appliances shall be vented in 
accordance with the provisions of this chapter. [NFPA 
54:9.1.14] 

507.17 Extra Device or Attachment. No device or attach- 
i ment shall be installed on an appliance that is capable of 

impairing the combustion of gas. [NFPA 54:9. 1. 15] 

507.18 Adequate Capacity of Piping. Where additional 
I appliances are being connected to a gas piping system, the 

existing piping shall be checked to determine where it has 



adequate capacity. Where inadequate, the existing system | 
shall be enlarged as necessary, or separate gas piping of ade- 
quate capacity shall be run from the point of delivery to the 
appliance. [NFPA 54:9.1.16] 

507.19 Avoiding Strain on Gas Piping. Appliances shall be | 
supported and so connected to the piping as not to exert undue 
strain on the connections. [NFPA 54:9. 1.17] 

507.20 Gas Appliance Pressure Regulators. Where the gas 
supply pressure is higher than that at which the appliance is I 
designed to operate or varies beyond the design pressure lim- 
its of the appliance, a gas appliance pressure regulator shall be 
installed. [NFPA 54:9.1. 18] 

507.21 Venting of Gas Appliance Pressure Regulators. 

Venting of gas appliance pressure regulators shall be in accor- 
dance with the following requirements: 

(1 ) Gas appliance pressure regulators requiring access to the 
atmosphere for successful operation shall be equipped 
with vent piping leading outdoors or, where the regula- 
tor vent is an integral part of the appliance, into the com- 
bustion chamber adjacent to a continuous pilot, unless 
constructed or equipped with a vent limiting means to 
limit the escape of gas from the vent opening in the event 
of diaphragm failure. 

(2) Vent limiting means shall be employed on listed gas 
appliance pressure regulators. 

(3) In the case of vents leading outdoors, means shall be 
employed to prevent water from entering this piping and 
also to prevent blockage of vents by insects and foreign 
matter. 

(4) Under no circumstances shall a regulator be vented to the 
appliance flue or exhaust system. J 

(5) In the case of vents entering the combustion chamber, 
the vent shall be located so the escaping gas will be read- 
ily ignited by the pilot and the heat liberated thereby will 
not adversely affect the normal operation of the safety 
shutoff system. The terminus of the vent shall be securely 
held in a fixed position relative to the pilot. For manu- 
factured gas, the need for a flame arrester in the vent pip- 
ing shall be determined. 

(6) Vent lines from a gas appliance pressure regulator and 
bleed lines from a diaphragm-type valve shall not be con- 
nected to a common manifold terminating in a combustion 
chamber. Vent lines shall not terminate in positive-pres- 
sure-type combustion chambers. [NFPA 54:9.1 .19] 

507.22 Bleed Lines for Diaphragm-Type Valves. Bleed 
lines shall comply with the following requirements: 

(1) Diaphragm-type valves shall be equipped to convey 
bleed gas to the outdoors or into the combustion cham- 1 
ber adjacent to a continuous pilot. 

(2) In the case of bleed lines leading outdoors, means shall 
be employed to prevent water from entering this piping 
and also to prevent blockage of vents by insects and for- 
eign matter. 

(3) Bleed lines shall not terminate in the appliance Hue orj 
exhaust system. 



2013 CALIFORNIA PLUMBING CODE 



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(4) In the case of bleed lines entering the combustion cham- 
ber, the bleed line shall be located so the bleed gas will 
be readily ignited by the pilot and the heat liberated 
thereby will not adversely affect the normal operation of 
the safety shutoff system. The terminus of the bleed line 
shall be securely held in a fixed position relative to the 
pilot. For manufactured gas, the need for a flame arrester 
in the bleed line piping shall be determined. 

(5) Bleed lines from a diaphragm-type valve and vent lines 
from a gas appliance pressure regulator shall not be con- 
nected to a common manifold terminating in a combus- 
tion chamber. Bleed lines shall not terminate in 
positive-pressure-type combustion chambers. [NFPA 
54:9.1.20] 

507.23 Combination of Appliances. A combination of appli- 
ances, attachments, or devices used together in a manner shall 
be in accordance with the standards that apply to the individ- 
ual appliance. [NFPA 54:9. 1 .21] 

507.24 Installation Instructions. The installing agency shall 
1 comply with the appliance manufacturer's installation instruc- 
1 tions in completing an installation. The installing agency shall 

leave the manufacturer's installation, operating, and mainte- 
nance instructions in a location on the premises where they 
will be readily available for reference and guidance for the 
Authority Having jurisdiction, service personnel, and the 
owner or operator. [NFPA 54:9.1.22] 

1 507.25 Protection of Outdoor Appliances. Appliances not 
listed for outdoor installation but installed outdoors shall be 
provided with protection to the degree that the environment 
requires. Appliances listed for outdoor installation shall be 
permitted to be installed without protection in accordance 

1 with the provisions of its l isting. [NFPA 54:9.1 .23] 

507.26 Accessibility for Service. Appliances shall be located 
with respect to building construction and other equipment so 
as to permit access to the appliance. Sufficient clearance shall 
be maintained to permit cleaning of heating surfaces; the 
replacement of filters, blowers, motors, burners, controls, and 
vent connections; the lubrication of moving parts where nec- 
essary; the adjustment and cleaning of burners and pilots; and 
the proper functioning of explosion vents, where provided. 
For attic installation, the passageway and servicing area adja- 
cent to the appliance shall be floored. [NFPA 54:9.2. 1 ] 

508.0 Appliances on Roofs. 

S 508.1 General. Appliances on roofs shall be designed or 
enclosed so as to withstand climatic conditions in the area in 
which they are installed. Where enclosures are provided, each 
enclosure shall permit easy entry and movement, shall be of 
reasonable height, and shall have not less than a 30 inch (762 
mm) clearance between the entire service access panel(s) of 
the appl iance and the wall of the enclosure. [NFPA 54:9.4. 1 . 1] 

508 J. 1 Load Capacity. Roofs on which an appliance is 
to be installed shall be capable of supporting the addi- 
tional load or shall be reinforced to support the additional 
load. [NFPA 54:9.4.1.2] 

508 J .2 Fasteners. Access locks, screws, and bolts shall 
be of corrosion-resistant material. [NFPA 54:9.4.1.3] 



508.2 Installation of Appliances on Roofs. Appliances shall | 
be installed in accordance with its listing and the manufac- 
turer's installation instructions. [NFPA 54:9.4.2.1] 

508.2.1 Clearance. Appliances shall be installed on a 
well-drained surface of the roof. Not less than 6 feet 
(1829 mm) of clearance shall be between a part of the 
appliance and the edge of a roof or similar hazard, or 
rigidly fixed rails, guards, parapets, or other building 
structures not less than 42 inches (1067 mm) in height 
shall be provided on the exposed side. [NFPA 54:9.4.2.2] 

508.2.2 Electrical Power. Appliances requiring an exter- 
nal source of electrical power for its operation shall be 
provided with: 

(1) A readily accessible electrical disconnecting means 
within sight of the appliance that will completely de- 
energize the appliance. 

(2) A 120-VAC grounding-type receptacle outlet on the 
roof adjacent to the appliance. The receptacle outl et 
shall be on the supply side of the disconnect switch . 
[NFPA 54:9.4.2.3] 

508.2.3 Platform or Walkway. Where water stands on 
the roof of the appliance or in the passageways to the 
appliance, or where the roof is of a design having a water 
seal, an approved platform, walkway, or both shall be j 
provided above the waterline. Such platforms or walk- 
ways shall be located adjacent to the appliance and con- 
trol panels so that the appliance is capable of being safely 
serviced where water stands on the roof. [NFPA 
54:9.4.2.4] 

508.3 Access to Equipment and Appliances on Roofs. 
Equipment and appliances located on roofs or other elevated | 
locations shall be accessible. [NFPA 54:9.4.3.1] 

508.3.1 Access. Buildings exceeding 15 feet (4572 mm) 
in height shall have an inside means of access to the roof, 
unless other means acceptable to the Authority Having 
Jurisdiction are used. [NFPA 54:9.4.3.2] 

508.3.2 Access Type. The in side means of access shall be 
a permanent, or fold-away inside stairway or ladder, ter- 
minating in an enclosure, scuttle, or trap door. Such scut- 
tles or trap doors shall be not less than 22 inches by 24 
inches (559 mm by 610 mm) in size, shall open easily 
and safely under all conditions, especially snow; and 
shall be constructed so as to permit access from the roof 
side unless deliberately locked on the inside. 

Not less than 6 feet (1 829 m m) of clearance shall be 
between the access opening and the edge of the roof or 
similar hazard, or rigidly fixed rails or guards not less 
than 42 inches (1067 mm) in height shall be provided on 
the exposed side. Where parapets or other building struc- 
tures are utilized in lieu of guards or rails, they shall be 
not less than 42 inches (1067 mm) in height. [NFPA 
54:9.4.3.3] 

508.3.3 Permanent Lighting. Permanent lighting shall 
be provided at the roof access. The switch for such light- 
ing shall be located inside the building near the access 
means leading to the roof. [NFPA 54:9.4.3.4] 



80 



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508,4 Appliances in Attics and Under-FIoor Spaces. An 
attic or under- floor space in which an appliance is installed 
shall be accessible through an opening and passageway not 
less than as large as the largest component of the appliance, 
and not less than 22 inches by 30 inches (559 mm by 762 
mm). 

508.4.1 Length of Passageway. Where the height of the 
passageway is less than 6 feet (1829 mm), the distance 
from the passageway access to the appliance shall not 
exceed 20 feet (6096 mm) measured along the centerline 
of the passageway. [NFPA 54:9.5.1.1] 

508.4.2 Width of Passageway. The passageway shall be 
unobstructed and shall have solid flooring not less than 
24 inches (610 mm) wide from the entrance opening to 
the appliance. [NFPA 54:9.5.1 .2] 

508.4.3 Work Platform. A level working platform not 
less than 30 inches (762 mm) by 30 inches (762 mm) 
shall be provided in front of the service side of the appli- 
ance. [NFPA 54:9.5.2] 

508.4.4 Lighting and Convenience Outlet A perma- 
nent 1 20-vo.lt receptacle outlet and a lighting fixture shall 
be installed near the appliance. The switch controlling 
the lighting fixture shall be located at the entrance to the 
passageway. [NFPA 54:9.5.3] 

509.0 Venting of Appliances. 

509.1 Minimum Safe Performance. Venting systems shall 
be designed and constructed to convey flue, vent, or both 
gases to the outdoors. [NFPA 54-12: 12.1] 

509.1 1 Installation. Listed vents shall be installed in 
accordance with this chapter and the manufacturer's 
installation instructions. [NFPA 54:12.2.3] 

509.1.2 Prohibited Discharge. Appliance vents shall not 
discharge into a space enclosed by screens having open- 
ings less than ] A of an i nch (6.4 mm) mesh. 

509.2 Connection to Venting Systems. Except as permitted 
in Section 509.2.1 through Section 509.2.5, appliances shall 
be connected to venting systems. [NFPA 54: 12.3.1] 

509.2.1 Appliances Not Required to be Vented. The 
following appliances shall not be required to be vented 
[NFPA 54: 12.3.2]: 

(1) A single listed booster-type (automatic instanta- 
neous) water heater, where designed and used solely 
for the sanitizing rinse requirements of a dish-wash- 
ing machine, provided that the appliance is installed 
with the draft hood in place and unaltered where a 
draft hood is required, in a commercial kitchen hav- 
ing a mechanical exhaust system; where installed in 
this manner, the draft hood outlet shall be not less 
than 36 inches (914 mm) vertically and 6 inches 
(152 mm) horizontally from a surface other than the 
appliance. [NFPA 54:12.3.2(5)] 

(2) Other appliances listed for unvented use and not pro- 
vided with flue collars. [NFPA 54:12.3.2(10)] 

Where appliances in Section 509.2. 1(1) and Sec- 
tion 509.2.1(2) are installed so the aggregate input 
rating exceeds 20 British thermal units per hour per 



cubic foot [(Btu/h)/ft 3 ] (0.21 kW/m 3 ) of room or 
space in which it is installed, one or more shall be 
provided with venting systems or other approved 
means for conveying the vent gases to the outdoors | 
so the aggregate input rating of the remaining 
unvented appliance does not exceed 20 [(Btu/h)/ft 3 ] 
(0.21 kW/m 3 ). Where the calculation includes the vol- 
ume of an adjacent room or space, the room or space 
in which the appliance is installed shall be directly 
connected to the adjacent room or space by a door- 
way, archway, or other opening of comparable size 
that cannot be closed. [NFPA 54: 12,3.2.1, 12.3.2.2] 

509.2.2 Ventilating Hoods. Ventilating hoods and 
exhaust systems shall be permitted to be used to vent 
appliances installed in commercial applications and to | 
vent industrial appliances, particularly where the process 
itself requires fume disposal. [NFPA 54: 1 2.3.3] 

509.2.3 Well- Ventilated Spaces. The operation of indus- 
trial appliances such that its flue gases are discharged 
directly into a large and well -ventilated space shall be 
permitted. [NFPA 54: 1 2.3.4] 

509.2.4 Direct-Vent Appliances. Listed direct-vent 
appliances shall be installed in accordance with the man- 1 
ufacturers installation instructions and Section 509.8.2. | 
[NFPA 54:12.3.5] 

509.2.5 Appliances with Integral Vents. Appliances 
incorporating integral venting means shall be installed in 
accordance with the manufacturer's installation instruc- 
tions, Section 509.8, and Section 509.8.1. [NFPA 54- 
12:12.3.6] 

509.3 Design and Construction. A venting system shall be 
designed and constructed so as to develop a positive flow to 
convey flue or vent gases to the outdoors. [NFPA 54:12.1] | 

509.3.1 Appliance Draft Requirements. A venting sys- 
tem shall satisfy the draft requirements of the appliance 
in accordance with the manufacturer's instructions. 
[NFPA 54: 12.4.1] 

509.3.2 Appliance Venting Requirements. Appliances 1 
required to be vented shall be connected to a venting sys- 
tem designed and installed in accordance with the provi- 
sions of Section 509.4 through Section 509.14 of this 
code. [NFPA 54: 12.4.2] 

509.3.3 Mechanical Draft Systems. Mechanical draft 
systems shall be listed and shall be installed in accor- 
dance with both the appliance and the mechanical draft I 
system manufacturer's installation instructions. [NFPA1 
54:12.4.3.1] 

509.3.3.1 Venting. Appliances requiring venting 1 
shall be permitted to be vented by means of mechan- 
ical draft systems of either forced or induced draft 
design. 

Exception: Incinerators. [NFPA 54:12.4.3.2] 

509.3.3.2 Leakage. Forced draft systems and por- 
tions of induced draft systems under positive pres- 
sure during operation shall be designed and installed 
so as to prevent leakage of flue or vent gases into a 
building. [NFPA 54: 1 2.4.3.3] 



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509.3.3.3 Vent Connectors. Vent connectors serv- 
ing appliances vented by natural draft shall not be 
connected into mechanical draft systems operating 
under positive pressure. [.NFPA 54:12.4.3.4] 

509.3.3.4 Operation. Where a mechanical draft sys- 
tem is employed, provision shall be made to prevent 
the How of gas to the main burners where the draft 
system is not performing so as to satisfy the operat- 
ing requirements of the appliance for safe perform- 
ance. [NFPA 54: 12.4.3. 5] 

509.3.3.5 Exit Terminals. The exit terminals of 
mechanical draft systems shall be not less than 7 feet 
(2134 mm) above finished ground level where 
located adjacent to public walkways and shall be 
located as specified in Section 509.8 and Section 
509.8.1 of this code. [NFPA 54: 1 2.4.3.6] 

509.3.4 Ventilating Hoods and Exhaust Systems. Ven- 
tilating hoods and exhaust systems shall be permitted to 
be used to vent appliances installed in commercial appli- 
cations. [NFPA 54: 12.4.4.1] 

509.3.4.1 Automatically Operated Appliances. 
Where automatically operated appliances, other than 
commercial cooking appliances, are vented through 
a ventilating hood or exhaust system equipped with 
a damper or with a power means of exhaust, provi- 
sions shall be made to allow the flow of gas to the 
main burners where the damper is open to a position 
to properly vent the appliance and where the power 
means of exhaust is in operation. [NFPA 
54:12.4.4.2] 

509.3.5 Circulating Air Ducts and Furnace Plenums. 
Venting systems shall not extend into or pass through a 
fabricated air duct or furnace plenum. [NFPA 
54:12.4.5.1] 

509.4 Type of Venting System to be Used. The type of vent- 
ing system to be used shall be in accordance with Table 509.4. 
[NFPA 54: 12.5.1] 

509.4.1 Plastic Piping. Plastic piping used for venting 
appliances listed for use with such venting materials shall 
be approved. [NFPA 54:12.5.2] 

509.4.2 Plastic Vent Joints. Plastic pipe and fittings used 
to vent appliances shall be installed in accordance with 
the appliance manufacturer's installation instructions. 
Where primer is required, it shall be of a contrasting 
color. [NFPA 54:12.5.3] 

509.4.3 Special Gas Vent Special gas vent shall be 
listed and installed in accordance with the special gas 
vent manufacturer's installation instructions. [NFPA 
54:12.5.4] 

509.5 Masonry, Metal, and Factory-Built Chimneys. 

509.5.1 Factory-Built Chimneys. Factory-built chim- 
neys shall be installed in accordance with the manufac- 
turer's installation instructions. Factory-built chimneys 
used to vent appliances that operate at positive vent pres- 
sure shall be listed for such application. [NFPA 
54:12.6.1.1] 



509.5.2 Metal Chimneys. Metal chimneys shall be built 
and installed in accordance with NFPA 211. [NFPA 
54:12.6.1.2] 

509.5.3 Masonry Chimneys. Masonry chimneys shall 
be built and installed in accordance with NFPA 21 1 and 
lined with approved clay flue lining, a listed chimney lin- 
ing system, or other approved material that resists corro- 
sion, erosion, softening, or cracking from vent gases at 
temperatures not exceeding 1800°F (982°C). 

Exception: Masonry chimney flues lined with a chim- 
ney lining system specifically listed for use with listed 
gas appliances with draft hoods, Category I appliances, 
and other gas appliances listed for use with Type B vents 
shall be permitted. The liner shall be installed in accor- 



TABLE 509.4 
TYPE OF VENTING SYSTEM TO BE USED 
[NFPA 54: TABLE 12.5.1] 



APPLIANCES 

Listed Category 1 appliances 
Listed appliances equipped 

with draft hood 
Appliances listed for 

Type B gas vent 



i Listed vented wall furnaces 



Category II appliances 
Category III appliances 
Category I V appliances 
Incinerators, outdoors 

Incinerators, indoors 

Appliances that are capable of 
being converted to use of 
solid fuel 

; Unlisted combination gas- and ' 
oil-burning appliances 

Combination gas- and solid- 
fuel-burning appliances 

Appliances listed for use with 
chimneys only 

lUnlisted appliances 

[Listed combination gas- and 

I oil-burning appliances 

i ■ -- - - 

Decorative appliance in 
vented fireplace 



TYPE OF VENTING SYSTEM 

T>pc B gas vent "(Section 509.6) 
Chimney (Section 509.5) 

Single- wall metal pipe (Section 
509J) 

Listed chimney lining system for 
gas venting (Section 509.5.3) 
Special gas vent listed for this 
appliance (Section 509.4.3) 
Type B-W gas vent (Section 

509.6, Section 509.6.2.2) 

As specified or furnished by man- 
ufacturers of listed appliance (Sec- 
tion 509.4.1, Section 509.4.3) 
Single-wall metal pipe (Section 

509.7, Section 509.7.2) 



Chimney (Section 509.5) 



Type L vent (Section 509.6) or 
chimney (Section 509.5) 



Chimney (UMC Section 907.2) 



Direct-vent appliances See Section 509.2.4 

Appliances with integral vent See Section 509.2.5 



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dance with the liner manufacturer's installation instruc- 
tions. A permanent identifying label shall be attached at 
the point where the connection is to be made to the liner. 
The label shall read: "This chimney liner is for appli- 
ances that burn gas only. Do not connect to solid- or liq- 
uid-fuel-burning appliances or incinerators." [NFPA 
54:12.6.1.3] 

509.5.4 Termination. A chimney for a residential-type or 
low-heat appliance shall extend not less than 3 feet (914 
mm) above the highest point where it passes through the 
roof of a building and not less than 2 feet (610 mm) 
higher than a portion of a building within a horizontal 
distance of 10 feet (3048 mm). (See Figure 509.5.4) 
[NFPA 54: 12.6.2.1] 

509.5.4.1 Medium-Heat Gas Appliances. A chim- 
ney for a medium-heat appliance shall extend not 
less than 10 feet (3048 mm) above a portion of a 
building within 25 feet (7620 mm). [NFPA 
54:12.6.2.2] 

509.5.4.2 Chimney Height. A chimney shall extend 
not less than 5 feet (1524 mm) above the highest 
connected appliance draft hood outlet or flue collar. 
[NFPA 54:12.6.2.3] 

509.5.4.3 Decorative Shrouds. Decorative shrouds 
shall not be installed at the termination of factory- 
built chimneys except where such shrouds are listed 
and labeled for use with the specific factory-built 
chimney system and are installed in accordance with 
the manufacturer's installation instructions. [NFPA 
54:12.6.2.4] 

509.5.5 Size of Chimneys. The effective area of a chim- 
ney venting system serving listed appliances with draft 
hoods, Category 1 appliances, and other appliances listed 
for use with Type B vents shall be in accordance with 
one of the following methods [NFPA 54:12.6.3.1]: 

(1) Section 510.0. [NFPA 54:12.6.3.1(1)] 

(2) For sizing an individual chimney venting system for 
a single appliance with a draft hood, the effective 
areas of the vent connector and chimney flue shall 
be not less than the area of the appliance flue collar 
or draft hood outlet or exceeding seven times the 
draft hood outlet area. [NFPA 54:12.6.3.1(2)] 

(3) For sizing a chimney venting system connected to 
two appliances with draft hoods, the effective area of 
the chimney flue shall be not less than the area of 
the larger draft hood outlet plus 50 percent of the 
area of the smaller draft hood outlet, or exceeding 
seven times the smallest draft hood outlet area. 
[NFPA 54: 12.6.3. 1(3)] 

(4) Other approved engineering methods. [NFPA 
54:12.6.3.1(5)] 

(5) Chimney venting systems using mechanical draft 
shall be sized in accordance with approved engi- 
neering methods. [NFPA 54: 1 2.6.3.1(4)] 




(a) Termination 10 feet or Less from Ridge, Wall, or Parapet 



More than 
— 10 feet - 



Wall or 
parapet 



i?j.;v:^,--y.;| 



Note: No height 
above parapet 
required when 
distance from walls 
or parapet is more 
than 10 feet. 



3 feet 
minimum 



Chimney 



Height above any 
roof surface within 
10 feet horizontally 



Ridge 




Chimney 



(b) Termination More Than 10 feet from Ridge, Wall, or Parapet 



For SI units: 1 foot = 304,8 mm 

FIGURE 509.5.4 
TYPICAL TERMINATION LOCATIONS FOR CHIMNEYS 
AND SINGLE-WALL METAL PIPES SERVING 
RESIDENTIAL-TYPE AND LOW-HEAT APPLIANCE 
[NFPA 54: FIGURE 12.6.2.1] 



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509.5.6 Inspection of Chimneys. Before replacing an 
existing appliance or connecting a vent connector to a 
chimney, the chimney passageway shall be examined to 
ascertain that it is clear and free of obstructions and shall 
be cleaned where previously used for venting solid- or 
liquid-fuel-burning appliances or fireplaces. [NFPA 
54: 12.6.4.1 J 

509.5.6.1 Standard. Chimneys shall be lined in 
accordance with NFPA 21 1 . 

Exception: Existing chimneys shall be permitted to 
have their use continued where an appliance is 
replaced by an appliance of similar type, input rat- 
ing, and efficiency, where the chimney is in accor- 
dance with Section 509.5.6, and the sizing of the 
chimney is in accordance with Section 509.5.5. 
[NFPA 54: 12.6.4.2] 

509.5.6.2 Cleanouts. Cl.ean.outs shall be examined 
to determine that they will remain tightly closed 
where not in use. [NFPA 54:12.6.4.3] 

509.5.6.3 Existing Chimney. Where inspection 
reveals that an existing chimney is not safe for the 
intended application, it shall be repaired, rebuilt, 
lined, relined, or replaced with a vent or chimney in 
accordance with NFPA 21 1 and shall be approved 
for the appliances to be attached. [NFPA 
54:12.6.4.4] 

509.5.7 Chimney Serving Appliances Burning Other 
Fuels. An appliance shall not be connected to a chimney 
flue serving a separate appliance designed to burn solid 
fuel. [NFPA 54:12.6.5.1] 

509.5.7.1 Multiple Appliances. Where one chim- 
ney serves gas appliances and liquid fuel-burning 
appliances, the appliances shall be connected 
through separate openings or shall be connected 
through a single opening where joined by a fitting 
located as close as practical to the chimney. Where 
two or more openings are provided into one chimney 
flue, they shall be at different levels. Where the gas 
appliance is automatically controlled, it shall be 
equipped with a safety shutoff device. [NFPA 
54:12.6.5.2] 

509.5.7.2 Manual Reset Device. A listed combina- 
tion gas- and sol id- fuel-burning appl iance connected 
to a single chimney flue shall be equipped with a 
manual reset device to shut off gas to the main 
burner i n the event of sustained backdraft or fl ue gas 
spillage. The chimney flue shall be sized to properly 
vent the appliance. [NFPA 54: 12.6.5.3] 

509.5.7.3 Combination Gas- and Oil-Burning 
Appliances. A single chimney flue serving a listed 
combination gas- and oil-burning appliance shall be 
sized to properly vent the appliance, [NFPA 
54:12.6.5.4] 

509.5.8 Support of Chimneys. Portions of chimneys 
shall be supported for the design and weight of the mate- 
rials employed. Listed factory-built chimneys shall be 



supported and spaced in accordance with their listings 
and the manufacturer's instructions. [NFPA 54:12.6.6] 

509.5.9 Cleanouts. Where a chimney that formerly car- 
ried flue products from liquid- or solid-fuel-burning 
appliances is used with an appliance using fuel gas, an 
accessible cleanout shall be provided. The cleanout shall 
have a tight-fitting cover and be installed so its upper 
edge is not less than 6 inches (152 mm) below the lower 
edge of the lowest chimney inlet opening. [NFPA 
54:12.6.7] 

509.5.10 Space Surrounding Lining or Vent. The 
remaining space surrounding a chimney liner, gas vent, 
special gas vent, or plastic piping installed within a 
masonry chimney flue shall not be used to vent another 
appliance. 

Exception: The insertion of another liner or vent within 
the chimney as provided in this code and the liner or vent 
manufacturer's instructions. [NFPA 54: 12.6.8. 1 ] 

509,5.10.1 Combustion Air. The remaining space 
surrounding a chimney liner, gas vent, special gas 
vent, or plastic piping installed within a masonry 
chimney flue shall not be used to supply combus- 
tion air. 

Exception: Direct-vent appliances designed for| 
installation in a solid-fuel-burning fireplace where 
installed in accordance with the manufacturer's I 
installation .instructions. [NFPA 54: 12.6.8.2] I 

509.6 Gas Vents. A gas vent passing through a roof shall 
extend through the entire roof flashing, roof jack, or roof 
thimble and be terminated with a listed termination cap. 
[NFPA 54:1 2.7.2(6 1] 

509.6.1 Installation. Type B or Type L vents shall extend 
in a vertical direction with offsets not exceeding 45 
degrees (0.79 rad), except that a vent system having not 
more than one 60 degree (1.05 rad) offset shall be per- 
mitted. An angle greater than 45 degrees (0.79 rad) from 
the vertical is considered horizontal. The total horizontal 
distance of a vent plus the horizontal vent connector serv- 
ing draft hood-equipped appliances shall be not greater 
than 75 percent of the vertical height of the vent. [NFPA 
54:12.7.3.2] 

509.6.1.1 Fasteners. Screws, rivets and other fasten- 
ers shall not penetrate the inner wall of double wall 
gas vents except at the transition from the appliance 
draft hood outlet, flue collar, or single wall metal con- 
nector to a double wall vent. [NFPA 54:12.7.1 (4)] 

509.6.2 Additional Termination Requirements. A gas 
vent shall terminate in accordance with one of the fol- 
lowing: 

(1) Gas vents that are 12 inches (305 mm) or less in size 
and located not less than 8 feet (2438 mm) from a ver- 
tical wall or similar obstruction shall terminate above 
the roof in accordance wi th Figure 509.6.2 and Table 
509.6.2. Gas vents that are over 12 inches (305 mm) 
in size or are located less than 8 feet (2438 mm) from 



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a vertical wall or similar obstruction, shall terminate 
not less than 2 feet (610 mm) above the highest point 
where they pass through the roof and not less than 2 
feet (610 mm) above a portion of a building within 
10 feet (3048 mm) horizontally. 
| (2) Industrial appliances as provided in Section 509.2.3. 

(3) Direct-vent systems as provided in Section 509.2.4. 

(4) Appliances with integral vents as provided in Sec- 
tion 509.2.5. 

(5) Mechanical draft systems as provided in Section 
509.3.3. 

(6) Ventilating hoods and exhaust systems as provided 
in Section 509.3.4. [NFPA 54:12.7.2(1)] 

509.6.2.1 Type B and L Vents. A Type B or a Type 
L gas vent shall terminate not less than 5 feet (1524 
mm) in vertical height above the highest connected 
appliance draft hood or flue collar. [NFPA 
54:12.7.2(2)] 

509.6.2.2 Type B-W Vents. A Type B-W gas vent 
shall terminate not less than 12 feet (3658 mm) in 
vertical height above the bottom of the wall furnace. 
[NFPA 54: 12.7.2(3)] 

509.6.2.3 Exterior Wall Termination. A gas vent 
extending through an exterior wall shall not termi- 
nate adjacent to the wall or below eaves or parapets, 
except as provided in Section 509.2.4 and Section 
509.3.3. [NFPA 54: 12.7.2(4)] 

509.6.2.4 Decorative Shrouds. Decorative shrouds 
shall not be installed at the termination of gas vents 
except where such shrouds are listed for use with the 
specific gas venting system and are installed in 
accordance with manufacturer's installation instruc- 
tions. [NFPA 54:12.7.2(5)] 

509.6.2.5 Forced Air Inlet. A gas vent shall termi- 
nate not less than 3 feet (914 mm) above a forced 
air inlet located within 10 feet (3048 mm). [NFPA 
54:12.7.2(7)] 

509.6.3 Size of Gas Vents. Venting systems shall be 
S sized and constructed in accordance with Section 510.0 
or other approved engineering methods and the gas vent 
and gas appliance manufacturer's instructions. [NFPA 
54:12.7.3] 

509.6.3.1 Category I Appliances. The sizing of nat- 
ural draft venting systems serving one or more listed 
appliances equipped with a draft hood or appliances 
listed for use with Type B gas vent, installed in a sin- 
gle story of a building, shall be in accordance with 
one of the follo wing methods: 

S (1) The provisions of Section 510.0. 

(2) Vents serving fan-assisted combustion system 
appliances, or combinations of fan-assisted 
combustion systems and draft hood-equipped 
appliances, shall be sized in accordance with 
1 Section 510.0 or other approved engineering 

methods. 




FIGURE 509.6.2 
GAS VENT TERMINATION LOCATIONS FOR 
LISTED CAPS 12 INCHES OR LESS IN SIZE NOT 
LESS THAN 8 FEET FROM A VERTICAL WALL 
[NFPA 54: FIGURE 12.7.2] 



TABLE 509.6.2 
ROOF PITCH HEIGHT 
[NFPA 54: TABLE 12.7.2] 



ROOF PITCH 


H (minimum) (feet) 


Flal to Vu 


1.0 


Over to 7 /i2 


1.25 


Over /'i2 to V\i 


1.5 


Over V\i to V\i 


2.0 


Over 0/ , 2 to ny i: 


2.5 


Over lc Vi2 to fl 7i2 


3.25 


Over M /i2 to l2 /i2 




Over ,2 /i2 to ,4 /i2 


5.0 


Over l4 /i2 to u Y\i 


6.0 


Over l( >'!2 to ls i2 


7.0 


Over % to W\2 


7.5 


Over 2( Y\ : to : V\ : 


8.0 



For SI Units: 1 inch = 25.4 mm, I foot = 304.8 mm 



(3) For sizing an individual gas vent for a single, 
draft hood-equipped appliance, the effective 
area of the vent con nector and the gas vent shall 
be not less than the area of the appliance draft 
hood outlet or exceeding seven times the draft 
hood outlet area. 

(4) For sizing a gas vent connected to two appli- 
ances with draft hoods, the effective area of the 
vent shall be not less than the area of the larger 
draft hood outlet plus 50 percent of the area of 
the smaller draft hood outlet or exceeding seven 
times the smaller draft hood outlet area. 

(5) Approved engineering practices. [NFPA 
54:12.7.3.1] 

509.6.3.2 Sizing. Chimney venting systems using 
mechanical draft shall be sized in accordance with 
approved engineering methods. [NFPA 54: J 2.7.3.4] 



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509.6.4 Gas Vents Serving Appliances on more than 
One Floor. A common vent shall be permitted in multi- 
story installations to vent Category I appliances located 
on more than, one floor level, provided the venting sys- 
tem is designed and installed in accordance with 
approved engineering methods. 

For the purpose of this section, crawl spaces, base- 
ments, and attics shall be considered as floor levels. 
[NFPA 54- 12: 12.7.4.1] 

509.6.4.1. Habitable Space. Appliances connected 
to the common vent shall be located in rooms sepa- 
rated from a habitable space. Each of these rooms 
shal l have provisions for an adequate supply of com- 
bustion, ventilation, and dilution air that is not sup- 
plied from a habitable space. (See Figure 509.6.4.1) 
[NFPA 54:12.7.4.2] 

The size of the connectors and common seg- 
ments of multistory venting systems for appliances 
listed for use with Type B double-wall gas vent shall 
be in accordance with Table 510.2(1), provided: 

( 1 ) The total height (H) for each segment of a mul- 
tistory venting system is the vertical distance 
between the level of the highest draft hood out- 
let or flue collar on that floor and the centerline 
of the next highest interconnection tee. 

(2) The si ze of the connector for a segment is deter- 
mined from the appliance's gas input rate and 
connector rise, and shal l not be smaller than the 
draft hood outlet or flue collar size. 

(3) The size of the common vertical vent segment, 
and of the interconnection tee at the base of that 
segment, shall be based on the total appliance 
heat input entering that segment and its total 
height. [NFPA 54: 12.7.4.3] 

50.9.6.5 Support of Gas Vents. Gas vents shall be sup- 
ported and spaced in accordance with their listings and 
the manufacturer's instructions. [NFPA 54: 12.7.5] 

509.6.6 Marking. In those localities where solid and liq- 
uid fuels are used extensively, gas vents shall be perma- 
nently identified by a label attached to the wall or ceiling 
at a point where the vent connector enters the gas vent. 
The label shall read: "This gas vent is for appliances that 
burn gas. Do not connect to solid- or liquid-fuel-burning 
appliances or incinerators." The Authority Having Juris- 
diction shall determine whether its area constitutes such 
a locality. [NFPA 54:1 2.7.6] 

509:7 Single- Wall Metal Pipe. Single-wall metal pipe shall be 
constructed of galvanized sheet steel not less than 0.0304 of an 
inch (0.7722 mm) thick or of other approved, noncombustible, 
corrosion-resistant material. [NFPA 54:12.8.1] 

509.7.1 Cold Climate. Uninsulated single-wall metal 
pipe shall not be used outdoors for venting appliances. 
For venting appliances in regions where the 99 percent 
winter design temperature is below 32°F (0°C). [NFPA 
54:12.8.2] 



Gas furnace - 




Outlet plenum 




Type B gas vents 



Outside balcony 
or service area 



fL 



-Air grilles in 
outside walls 



-Louvered door could 
be used in lieu ot 
outside wall grilles 



FIGURE 509.6.4.1 
PLAN VIEW OF PRACTICAL SEPARATION 
METHOD FOR MULTISTORY GAS VENTING 
[NFPA 54: FIGURE 12.7.4.2] 



509.7.2 Termination. The termination of single-wall 
metal pipe shall comply with the following requirements: 

(1) Single-wall metal pipe shall terminate not less than 
5 feet (1524 mm) in vertical height above the high- 
est connected appliance draft hood outlet or flue col- 
lar, 

(2) Single-wall metal pipe shall extend not less than 2 
feet (610 mm) above the highest point where it 
passes through the roof of a building and not less 
than 2 feet (610 mm) exceeding a portion of a build- 
ing within a horizontal distance of 10 feet (3048 
mm). (See Figure 509.5.4) 

(3) An approved cap or roof assembly shal l be attached 
to the terminus of a single-wall metal pipe. [NFPA j 
54:12.8.3] 

509.7.3 Installation with Appliances Permitted by 
Table 509.4. Single-wall metal pipe shall not be used as 
a vent in dwellings and residential occupancies. [NFPA 
54:12.8.4.1] 

509.7.3.1 Limitations. Single-wall metal pipe shall 
be used for runs directly from the space in which the 
appliance is located through the roof or exterior wal l 1 
to the outer air. A pipe passing through a roof shall 
extend without interrupti on through the roof Hashing, 
roof jacket, or roof thimble. [NFPA 54:12.8.4.2] 

509.7.3.2 Attic or Concealed Space. Single-wall 
metal pipe shall not originate in an unoccupied attic 
or concealed space and shall not pass through an 
attic, inside wall, concealed space, or floor. For the 
installation of a single-wall metal pipe through an 
exterior combustible wall see Section 509.7.3.5. | 
[NFPA 54:12.8.4.3] 



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509.7.3.3 Incinerator. Single-wall metal pipe used 
for venting an incinerator shall be exposed and read- 
ily examinable for its full length and shall have 
required clearances maintained. [NFPA 54:12.8.4.4] 

509.7.3.4 Clearances. Minimum clearances from 
single-wall metal pipe to combustible material shall 
be in accordance with Table 509.7.3. Reduced clear- 
ances from single-wall metal pipe to combustible 
material shall be as specified for vent connectors in 
Table 509.7.3(1). [NFPA 54:12.8.4.5] 

509.7.3.5 Exterior. Single-wall metal pipe shall not 
pass through a combustible exterior wall unless 
guarded at the point of passage by a venti lated metal 
thimble not smaller than the following: 

( 1 ) For listed appl iances with draft hoods and appli- 
ances listed for use with Type B gas vents, the 
thimble shall be not less than 4 inches (102 mm) 
larger in diameter than the metal pipe. Where 
there is a run of not less than 6 feet (1829 mm) 
of metal pipe in the opening between the draft 
hood outlet and the thimble, the thimble shall 
be a minimum 2 inches (5 1 mm) larger in diam- 
eter than the metal pipe. 

(2) For unlisted appliances having draft hoods, the 
thimble shall be a minimum 6 inches (152 mm) 
larger in diameter than the metal pipe. 

(3) For residential and low-heat appliances, the 
thimble shall be not less than 12 inches (305 
mm) larger in diameter than the metal pipe. 

Exception: In lieu of thimble protection, combustible 
material in the wall shall be removed a sufficient dis- 
tance from the metal pipe to provide the specified 
clearance from such metal pipe to combustible mate- 
rial. Any material used to close up such opening shall 
be noncorabustible. [NFPA 54:12.8.4.7] 

509.7.3.6 Roof Thimble. Where a single-wall metal 
pipe passes through a roof constructed of com- 



bustible material, a noncombustible, nonventilating 
thimble shall be used at the point of passage. The 
thimble shall extend not less than 18 inches (457 
mm) above and 6 inches (152 mm) below the roof 
with the annular space open at the bottom and closed 
at the top. The thimble shall be sized in accordance 
with Section 509.7.3.5. [NFPA 54:12.8.4.6] 

509.7.4 Size of Single-Wall Metal Pipe. Single-wall 
metal piping shall comply with the following sections, j 
[NFPA 54: 12.8.5] 

509.7.4.1 Sizing of Venting System. A venting sys- 
tem of a single-wall metal pipe shall be sized in 
accordance with one of the following methods and 
the gas appliance manufacturer's instructions: 

(1) For a draft hood-equipped appliance, in accor- 
dance with Section 510.0. I 

(2) For a venting system for a single appliance with 
a draft hood, the areas of the connector and the 
pipe each shall be not less than the area of the 
appliance flue collar or draft hood outlet, 
whichever is smaller. The vent area shall not 
exceed seven times the draft hood outlet area. 

(3) Other approved engineering methods. [NFPA 
54:12.8.5(1)] 

509.7.4.2 Non-Round Metal Pipe. Where a single- 
wall metal pipe is used and has a shape other than 
round, it shall have an effective area equal to the 
effective area of the round pipe for which it is sub- 
stituted, and the internal dimension of the pipe shall 
be not less than 2 inches (51 mm). [NFPA 
54:12.8.5(2)] 

509.7.4.3 Venting Capacity. The vent cap or a roof 
assembly shall have a venting capacity not less than 
that of the pipe to which it is attached. [NFPA 
54:12.8.5(3)] 



APPLIANCE 



TABLE 509.7.3 
CLEARANCE FOR CONNECTORS 
[NFPA 54: TABLE 12.8.4.5]* 

MINIMUM DISTANCE FROM COMBUSTIBLE MATERIAL (inches) 
LISTED TYPE B GAS LISTED TYPE L VENT 



Listed appliances with draft hoods and appliances listed 
for use with Type B gas vents 

Residential boilers and furnaces with listed gas conver- 
sion burner and with draft hood 



Residential appliances listed for use with Type L vents 
Unlisted residential appliances with draft hood 



Residential and low-heat appliances other than those 
above 



Medium -heat appl iances 



VENT MATERIAL 

As listed 



MATERIAL 



Not permitted 
Not permitted 
Not permitted 

Not permitted 



As listed 



As listed 
6 



Not permitted 



SINGLE-WALL 
METAL PIPE 



36 



FACTORY-BUILT 
CHIMNEY SECTIONS 

As listed 



As listed 

As listed 
As listed 
As listed 

As listed 



For SI units: 1 inch = 25.4 mm 

* These clearances shall apply unless the installation instructions of a listed appliance or connector specify different clearances, in which case the listed clearances 
shall apply. 



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Construction using combustible — N 
material, plastered or unplastered 





Sheet metal or 
other protection 



Gas equipment - 
or vent connector 



Notes: 

A Equals the clearance with no protection specified in Table 509.7.3 and 
Table 509.7.3(1 ) and in the sections applying to various types of appliances. 

B - Equals the reduced clearance permitted in accordance with Table 
509.7.3. The protection applied to the construction using combustible mate- 
rial shall extend far enough in each direction to make C equal to A. 

FIGURE 509.7.3 
EXTENT OF PROTECTION NECESSARY TO REDUCE CLEAR- 
ANCES FROM GAS APPLIANCES OR VENT CONNECTORS 
[NFPA54: FIGURE 10.3.2.2(a)] 



Mounted with side 
and top edges open 



Mounted with top 
and bottom edges 
open 




Wall protector mounted 
on single flat wall 



Must be mounted with top 
and bottom edges open 



Wall protector installed in corner 



Combustible 
wall \ \ \ 

f( y \ ! I 

Iff 



■4-1 inch-*- 
air space 



Nail or screw anchor 



•■ Clearance 
reduction system 



1 inch noncombustible 
spacer such as stacked washers, 
small-diameter pipe, tubing, or 
electrical conduit. 



For SI units: I inch = 25.4 mm 

Note: Masonry walls shall be attached to combustible walls using wall ties. 
Spacers shall not be used directly behind appliance or connector. 

FIGURE 509.7.3(1) 
WALL PROTECTION REDUCTION SYSTEM 
[NFPA 54: FIGURE 10.3.2.2(b)] 



509.7.5 Support of Single- Wall Metal Pipe. Portions 
of single-wall metal pipe shall be supported for the 
design and weight of the material employed. [NFPA 
54:12.8.6] 

509.7.6 Marking. Single-wall metal pipe shall comply 
with the marking provisions of Section 509.6.6. [NFPA 
54:12.8.7] 

509.8 Through-the-Wall Vent Termination. (See Figure 
509.8.) A mechanical draft venting system shal l terminate not 
less than 3 feet (914 mm) above a forced air inlet located 
within 10 feet (3048 mm). 

Exceptions: 

(1) This provision shall not apply to the combustion air 
intake of a direct- vent appliance. 

(2) This provision shall not apply to the separation of the 
integral outdoor air inlet and flue gas discharge of listed 
outdoor appliances. [NFPA 54:1 2.9. 1] 

509.8.1 Mechanical Draft Venting System. A mechan- 
ical draft venting system of other than direct-vent type 
shall terminate not less than 4 feet (1219 mm) below, 4 
feet (1219 mm) horizontally from, or 1 foot (305 mm) 
above a door, operable window, or gravity air inlet into 
a building. The bottom of the vent terminal shall be 
located not less than 12 inches (305 mm) above finished 
grade. [NFPA 54:12.9.2] 

509.8.2 Direct- Vent Appliance. The vent terminal of a 
direct-vent appliance with an input of 10 000 Btu/h (3 
kW) or less shall be located not less than 6 inches (152 
mm) from an air opening into a building, and such an 
appliance with an input over 10 000 Btu/h (3 kW) but not 
exceeding 50 000 Btu/h (1 4.7 kW) shall be installed with 



Combustible wall 




1 inch 
minimum air space 
between masonry 
and combustible wa!i 



4 inch 
nominal brick wall 



Bottom and top course 
of bricks staggered for 
ventilation 



A strip of heavy-gauge steel 
used for added support 

Note; Do not place masonry wall ties directly 
behind appliance or connector. 



For SI units: 1 inch = 25.4 mm 

FIGURE 509.7.3(2) 
MASONRY CLEARANCE REDUCTION SYSTEM 
[NFPA 54: FIGURE 10.3.2.2(c)] 



Corrugated 
metal wall 
ties 




Masonry wall tie 



88 



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a 9 inch (229 mm) vent termination clearance, and an 
appliance with an input over 50 000 Btu/h (14.7 kW) 
shall have not less than a 12 inch (305 mm) vent termi- 
nation clearance. The bottom of the vent terminal and the 
air intake shall be located not less than 12 inches (305 
mm) above finished grade. [NFPA 54: 12.9.3] 

509.8.3 Nuisance and Hazard. Through-the-wall vents 
for Category II and Category IV appliances and noncat- 
egorized condensing appliances shall not terminate over 
public walkways or over an area where condensate or 
vapor is capable of creating a nuisance or hazard detri- 
mental to the operation of regulators, relief valves, or 
other equipment. Where local experience indicates that 
condensate is a problem with Category 1 and Category 
III appliances, this provision shall also apply. 

Drains for condensate shall be installed in accor- 
| dance with the appliance and the vent manufacturer's 
installation instructions. [NFPA 54-12:12.9.4] 

509.8.4 Annular Spaces. Where vents, including those 
for direct-vent appliances or combustion air intake pipes, 
penetrate outside walls of buildings, the annular spaces 
around such penetrations shall be permanently sealed 
using approved materials to prevent entry of combustion 
products into the building. [NFPA 54:12.9.5] 

509.8.5 Vent Terminals. Vent terminals that terminate 
through an outside wall of a building shall be located not 
less than 10 feet (3048 mm) horizontally from an opera- 
ble opening in an adjacent building. This shall not apply 
to operable openings that are not less than 2 feet (610 
mm) below or 25 feet (7620 mm) above the elevation of 
the vent terminal. [NFPA 5442: 12.9.6] 



509.9 Condensation Drain. Provision shall be made to col- 
lect and dispose of condensate from venting systems serving 
Category II and Category IV appliances and noncategorized | 
condensing appliances in accordance with Section 509.8.3. 
[NFPA 54: 12. 10.1] 

509.9.1 Local Experience. Where local experience indi- 
cates that condensation is a problem, provision shall be 
made to drain off and dispose of condensate from vent- 
ing systems serving Category I and Category III appJi- 1 
ances in accordance with Section 509.8.3. [NFPA 
54:12.10.2] 

509.10 Vent Connectors for Category I Appliances. A vent 
connector shall be used to connect an appliance to a gas vent, | 
chimney, or single-wall metal pipe, except where the gas vent, 
chimney, or single-wall metal pipe is directly connected to 
the appliance. [NFPA 54: 12.11. 1 ] 

509.10.1 Materials. A vent connector shall be made of 
noncombustible, corrosion resistant material capable of 
withstanding the vent gas temperature produced by the 
appliance and of a thickness to withstand physical dam- 1 
age. [NFPA 54: 12. 11.2.1] 

509.10.1.1 Unconditioned Area. Where the vent 
connector used for an appliance having a draft hood J 
or a Category I appliance is located in or passes 
through an unconditioned area, attic or crawl space, | 
that portion of the vent connector shall be listed 
Type B, Type L, or listed vent material having equiv- 
alent insulation qualities. 

Exception: Single-wall metal pipe located within the 
exterior walls of the building and located in an uneon- 1 




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TABLE 509.7.3(1) 

REDUCTION OF CLEARANCES WITH SPECIFIED FORMS OF PROTECTION 1 - 2 - 3 - 4 - 5 - 6 < 7 > 8 - 9 - 10 > 11 

[NFPA 54: TABLE 10.2.3(b)] 



TYPE OF PROTECTION APPLIED 
TO AND COVERING SURFACES 
OF COMBUSTIBLE MATERIAL 
WITHIN THE DISTANCE SPECI- 
FIED AS THE REQUIRED CLEAR- 
ANCE WITH NO PROTECTION 
[SEE FIGURE 509,7,3 THROUGH 
FIGURE 509.7.3(2)] 



WHERE THE REQUIRED CLEARANCE WITH NO PROTECTION FROM APPLIANCE, 
VENT CONNECTOR, OR SINGLE-WALL METAL PIPE IS: 

36 (inches) ! 18 (inches) 12 (inches) 9 (inches) j 6 (inches) 

ALLOWABLE CLEARANCES WITH SPECIFIED PROTECTION (inches) 



USE COLUMN 1 FOR CLEARANCES ABOVE APPLIANCE OR HORIZONTAL CONNECTOR. USE 
COLUMN 2 FOR CLEARANCES FROM APPLIANCES, VERTICAL CONNECTOR, AND SINGLE-WALL METAL PIPE 

SIDES AND 



ABOVE 
COLUMN 1 



! ( I ) 31: inch (hick masonry 
wall without ventilated air 
space 

(2) Vi of an inch insulation 
board over 1 inch glass 
fiber or mineral wool baits 

; (3) 0.024 inch sheet metal over 
\ I inch glass fiber or mineral ' 
! wool batts reinforced with 
! wire on rear lace with ven- I 
t Hated air space 

(4) V/i inch thick masonry wall t 
with ventilated air space 

(5) 0.024 inch sheet metal with 
ventilated air space 

1(6) Vi of an inch thick insula- 
| lion board with ventilated 
j air space 

(7) 0.024 inch sheet metal with 
ventilated air space over 
0.024 inch sheet metal with 
ventilated air space 

(8 ) I inch glass liber or mineral : 
wool batts sandwiched 
between two sheets 0.024 
inch sheet metal with venti 
lated air space 



SIDES AND 
! REAR 
! COLUMN 2 

24 



ABOVE 
COLUMN 1 



SIDES AND 

REAR 
COLUMN 2 



ABOVE 
COLUMN 1 



REAR AB0VE REAR AB0VE 
COLUMN 2 ! C0LUMN 1 COLUMN 2 C ° LUMN 1 COLUMN 2 



SIDES AND 
REAR 



24 



12 



18 



12 



12 



12 



18 



12 



For SI units: I inch = 25.4 mm, C C - (°F-32)/.l .8 
Notes: 

1 Reduction of clearances from combustible materials shal l not interfere with combustion air, draft hood clearance and relief and accessibility of servicing. 

2 Clearances shall be measured from the outer surface of the combustible material to the nearest point on the surface of the appliance, disregarding an inter- 
vening protection applied to the combustible material. 

3 Spacers and ties shall be of noncombustible material. No spacer or tie shall be used directly opposite the appliance or connector. 

4 Where clearance reduction systems use a ventilated air space, adequate provision for air circulation shall be provided as described. [See Figure 509.7.3(1) 
and Figure 509.7.3(2)] 

There shall be not less than 1 inch (25.4 mm) between clearance reduction systems and combustible walls and ceilings for reduction systems using a ven- 
tilated air space. 

6 Where a wall protector is mounted on a single flat wall away from corners, it shall have a minimum 1 inch (25.4 mm) air gap. To provide air circulation, 
the bottom and top edges, or only the side and top edges, or edges shall be left open. 

7 Mineral wool batts (blanket or board) shall have a minimum density of 8 pounds per cubic foot (lb/ft 3 ) (128 kg/m 3 ) and a minimum melting point of 1500°F 
(816°C). 

8 Insulation material used as part of a clearance reduction system shall have a thermal conductivity of 1 British thermal unit inch per hour square foot degree 
Fahrenheit [Btu*in/()r ft 2 '°F)] [0.1 W/(m-K)] or less. 

9 There shall be not less than 1 inch (25.4 mm) between the appliance and the protector. In no case shall the clearance between the appliance and the com- 
bustible surface be reduced below that allowed in this table, 

10 Clearances and thicknesses are minimum; larger clearances and thicknesses are acceptable. 

1 1 Listed single-wall connectors shall be installed in accordance with the terms of their listing and the manufacturer's installation instructions. 



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ditioned area other than an attic or a crawl space hav- 
ing a local 99 percent winter design temperature of 
5°F (-15°C) or higher. [NFPA 54-12:12.11.2.2] 

509.10.1.2 Residential-Type Appliances. Vent con- 
nectors for residential-type appliances shall comply 
with the following: 

(1) Vent connectors for listed appliances having 
draft hoods, appliances having draft hoods and 
equipped with listed conversion burners that are 
not installed in attics, crawl spaces, or other 
unconditioned areas shall be one of the follow- 
ing: 

(a) Type B or Type L vent material. 

(b) Galvanized sheet steel not less than 0.018 
of an inch (0.457 mm) thick. 

(c) Aluminum (1100 or 3003 alloy or equiva- 
lent) sheet not less than 0.027 of an inch 
(0.686 mm) thick. 

(d) Stainless steel sheet not less than 0.012 of 
an inch (0.305 mm) thick. 

(e) Smooth interior wall metal pipe having resist- 
ance to heat and corrosion equal to or exceed- 
ing that of Section 509.10.1. 2(l)(b), Section 
509. 1 0. 1 .2( 1 )(c), or Section 509. 1 0. 1 .2(1 )(d) 
above. 

(f) A listed vent connector. 

(2) Vent connectors shall not be covered with insu- 
lation. 

Exception: Listed insulated vent connectors shall 
be installed in accordance with the manufacturer's 
installation instructions. [NFPA 54: 1 2. 11 .2.4] 

509.10.1.3 Non-Residential Low-Heat Appli- 
ances. A vent connector for a non-residential low- 
heat appliance shall be a factory-built chimney 
section or steel pipe having resistance to heat and 
corrosion equivalent to the galvanized pipe speci- 
fied in Table 509.10.1. Factory-built chimney sec- 
tions shall be installed in accordance with the 
chimney manufacturer's installation instructions. 
[NFPA 54:12.11.2.5] 

509.10.1.4 Medium-Heat Appliances. Vent con- 
nectors for medium-heat appliances, and commer- 
cial and industrial incinerators, shall be constructed 
of factory-built, medium-heat chimney sections or 
steel of a thickness not less than that specified in 
Table 509.10.1(1) and shall comply with the fol- 
lowing: 

(1) A steel vent connector for appliances with a 
vent gas temperature in excess of 1000°F 
(538°C) measured at the entrance to the con- 
nector shall be lined with medium-duty fire 
brick or the equivalent. 

(2) The lining shall be not less than 2Vi inches (64 
mm) thick for a vent connector having a diam- 



eter or greatest cross-sectional dimension of 1 8 
inches (457 mm) or less. 

(3) The lining shall be not less than 4/2 inches ( 1 14 
mm) thick laid on the AVi inch (114 mm) bed 
for a vent connector having a diameter or cross- 
sectional dimension exceeding 18 inches (457 
mm). 

(4) Factory-built chimney sections, where 
employed, shall be installed in accordance with 1 
the chimney manufacturer's installation instruc- 1 
tions. [NFPA 54:12.1 1.2.6] 

509.10.2 Size of Vent Connector. A vent connector for an 
appliance with a single draft hood or for a Category 1 fan- 1 
assisted combustion system appliance shall be sized and 
installed in accordance with Section 510.0 or other | 
approved engineering methods. [NFPA 54: 1 2. 1 1 .3.1 ] 

509.1 0.2.1 Manifold. For a single appliance having 
more than one draft hood outlet or flue collar, the 
manifold shall be constructed according to the 
instructions of the appliance manufacturer. Where 
there are no instructions, the manifold shall be 
designed and constructed in accordance with 
approved engineering practices. As an alternate 
method, the effective area of the manifold shall 
equal the combined area of the flue collars or draft 
hood outlets, and the vent connectors shall have not 
less than 1 foot (305 mm) rise. [NFPA 54: 1 2. 1 1 .3.2] 



TABLE 509.10.1 
MINIMUM THICKNESS FOR GALVANIZED STEEL VENT 
CONNECTORS FOR LOW-HEAT APPLIANCES 
[NFPA 54: TABLE 12.11.2.5] 



DIAMETER OF CONNECTOR 
(inches) 

Less than 6 

6 lo less than 10 

10 to 1 2 inclusive 

14 to 16 inclusive 

Over~l6 



MINIMUM THICKNESS 
(inches) 

0.019 

0.023 

0.029 

0.034 



For SI units: 1 inch = 25.4 mm, 1 square inch = 0.000645 irr 

TABLE 509.10.1(1) 
MINIMUM THICKNESS FOR STEEL VENT CONNECTORS FOR 
MEDIUM-HEAT APPLIANCES AND COMMERCIAL AND 
INDUSTRIAL INCINERATORS 
[NFPA 54: TABLE 12.11.2.6] 



DIAMETER (inches) 



VENT CONNECTOR SIZE 

AREA MINIMUM 
(square inches) I THICKNESS (inches) 

Up lo 14 Up to 154 i 0.053 

Over 14 to 16 154 to 201 | 0.067 

Over 16 to 1 8 201 to 254 0.093 

Over 18 Exceeding 254 0.123 

For Si units: 1 inch = 25.4 mm, ! square inch - 0.000645 in 2 



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1 509.10.2.2 Size. Where two or more appliances are 

connected to a common vent or chimney, each vent 
connector shall be sized in accordance with Section 
510.0 or other approved engineering methods. 
[NF.PA 54:12.1 .1.3.3] 

As an alternative method applicable where the 
appliances are draft hood-equipped, each vent con- 
nector shall have an effective area not less than the 
area of the draft hood outlet of the appliance to 
which it is connected. [NFPA 54: 12.1 1 .3.4] 

1 509.10.2.3 Height. Where two or more appliances 

are vented through a common vent connector or vent 
manifold, the common vent connector or vent man- 
ifold shall be located at the highest level consistent 
with available headroom and clearance to com- 
bustible material and shall be sized in accordance 
with Section 510.0 or other approved engineering 
methods. [NFPA 54:12. 1 1 .3.5] 

As an alternate method applicable where there 
are two draft hood-equipped appliances, the effec- 
tive area of the common vent connector or vent man- 
ifold and junction fittings shall be not less than the 
area of the larger vent connector plus 50 percent of 
the areas of smaller flue collar outlets. [NFPA 
54:12.11.3.6] 

509.10.2.4 Size Increase. Where the size of a vent 
connector is increased to overcome installation lim- 
itations and obtain connector capacity equal to the 
appliance input, the size increase shall be made at 
the appl iance draft hood outlet. [NFPA 54: 12.11.3.7] 

509.10.3 Two or More Appliances Connected to a Sin- 
gle Vent. Where two or more openings are provided into 
one chimney flue or vent, the openings shall be at dif- 
ferent levels, or the connectors shall be attached to the 
vertical portion of the chimney or vent at an angle of 45 
degrees (0.79 rad) or less relative to the vertical. [NFPA 
54:12.11.4.1] 

509.10.3.1 Height of Connector. Where two or 
| more vent connectors enter a common vent, chim- 
ney flue, or single-wall metal pipe, the smaller con- 
nector shall enter at the highest level consistent with 
the available headroom or clearance to combustible 
material. [NFPA 54-12:12.1 1.4.2] 

509.10.3.2 Pressure. Vent connectors serving Cate- 
gory 1 appliances shall not be connected to a portion 
of a mechanical draft system operating under posi- 
tive static pressure, such as those serving Category 
III or Category IV appliances. [NFPA 54:12.11 .4.3] 

509.10.4 Clearance. Minimum clearances from vent 
connectors to combustible material shall comply with 
Table 509.7.3. 

Exception: The clearance between a vent connector and 
combustible material shall be permitted to be reduced 
where the combustible material is protected as specified 
for vent connectors in Table 509.7.3(1). [NFPA 
54:12.11.5] 



509.10.5 Joints. Joints between sections of connector 
piping and connections to flue collars or draft hood out- 
lets shall be fastened in accordance with one of the fol- 
lowing methods: 

(1) By sheet metal screws. 

(2) Vent connectors of listed vent material shall be 
assembled and connected to flue collars or draft 
hood outlets in accordance with the manufacturer's 
installation instructions. \ 

(3) Other approved means. [NFPA 54: 12. 1 1 .7] 

509.10.6 Slope. A vent connector shall be installed with- 
out dips or sags and shall slope upward toward the vent 
or chimney not less than l A inch per foot (20.8 mm/m). 

Exception: Vent connectors attached to a mechanical 
draft system installed in accordance with the appliance 
and draft system manufacturer's installation instructions. | 
[NFPA 54:12.11.8] 

509.10.7 Length of Vent Connector. 

509.10.7.1 Single Wall Connector. The maximum 
horizontal length of a single-wall connector shall be 
75 percent of the height of the chimney or vent 
except for engineered systems. [NFPA 54: 12. 1 1 .9.2] 

509.10.7.2 Type B Double Wall Connector. The 
maximum horizontal length of a Type B double- wall 
connector shall be 100 percent of the height of the 
chimney or vent, except for engineered systems. The 
maximum length of an individual connector for a 
chimney or vent system serving multiple appliances, 
from the appliance outlet to the junction with the 
common vent or another connector, shall be 100 per- 
cent of the height of the chimney or vent. [NFPA 
54:12.1 1.9.3] 

509.10.8 Support. A vent connector shall be supported 
for the design and weight of the material employed to 
maintain clearances and prevent physical damage and 
separation of joints. [NFPA 54: 12.1 1 . 1 0] 

509.10.9 Chimney Connection. Where entering a flue in 
a masonry or metal chimney, the vent connector shall be 
installed above the extreme bottom to avoid stoppage. 
Where a thimble or slip joint is used to facilitate removal 
of the connector, the connector shall be attached to or | 
inserted into the thimble or slip joint to prevent the con- 
nector from falling out. Means shall be employed to pre- 
vent the connector from entering so far as to restrict the 
space between its end and the opposite wall of the chim- 
ney flue. [NFPA 54:12.11.11] 

509.10.10 Inspection. The entire length of a vent con- 
nector shall be readily accessible for inspection, clean- 
ing, and replacement. [NFPA 54; 12.11.12] 

509.10.11 Fireplaces. A vent connector shall not be con- 
nected to a chimney flue serving a fireplace unless the 
fireplace flue opening is permanently sealed. [NFPA 
54:12.11.13] 



92 



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509.10.12 Passage through Ceilings, Floors, or Walls. 
A vent connector shall not pass through a ceiling, floor, 
or fire-resistance-rated wall. A single-wall metal pipe 
connector shall not pass through an interior wall. 

Exception: Vent connectors made of listed Type B or 
Type L vent material and serving listed appliances with 
draft hoods and other appliances listed for use with Type 
B gas vents that pass through walls or partitions con- 
structed of combustible material shall be installed with 
not less than the listed clearance to combustible material. 

509.10.12.1 Medium-Heat Appliances. Vent con- 
nectors for medium-heat appliances shall not pass 
through walls or partitions constructed of com- 
bustible material. [NFPA 54:12.11.14.2] 

1 509.11. Draft Hoods and Draft Controls. Vented appliances 
shall be installed with draft hoods. 

Exception: Dual oven-type combination ranges; incinerators; 
direct-vent appliances; fan-assisted combustion system appli- 
ances; appliances requiring chimney draft for operation; sin- 
gle firebox boilers equipped with conversion burners with 
inputs exceeding 400 000 Btu/h (117 kW); appliances 
equipped with blast, power, or pressure burners that are not 
listed for use with draft hoods; and appliances designed for 
forced venting. [NFPA 54: 12.13.1] 

509.11.1 Installation. A draft hood supplied with or 
1 forming a part of listed vented appliances shall be 

installed without alteration, exactly as furnished and 
specified by the appliance manufacturer. 

Where a draft hood is not supplied by the appliance 
manufacturer where one is required, a draft hood shall 
be installed, be of a listed or approved type, and, in the 
absence of other instructions, be of the same size as the 
appliance flue collar. Where a draft hood is required with 
a conversion burner, it shall be of a listed or approved 
type. 

1 Where a draft hood of special design is needed or 

1 preferable, the installation shall be in accordance with 
the recommendations of the appliance manufacturer and 
S shall be with the approval of the Authority Having Juris- 
diction. [NFPA 54:12.13.2] 

509.11.2 Draft Control Devices. Where a draft control 
| device is part of the appl iance or is supplied by the appli- 
ance manufacturer, it shall be installed in accordance 

1 with the manufacturer's installation instructions. In the 
i absence of manufacturer's installation instructions, the 
device shal l be attached to the flue collar of the appli- 
ance or as near to the appliance as practical. [NFPA 
54:12.13.3] 

| 509.11.3 Additional Devices. Appliances (except incin- 
erators) requiring controlled chimney draft shall be per- 
mitted to be equipped with a listed double-acting 
barometric draft regulator installed and adjusted in accor- 

S dance with the manufacturer's installation instructions. 
[NFPA 54:12. 13.4] 



509.11.4 Location. Draft hoods and barometric draft reg- 
ulators shall be installed in the same room or enclosure 
as the appliance in such a manner as to prevent a differ- 
ence in pressure between the hood or regulator and the 
combustion air supply. [NFPA 54: 1 2.13.5] 

509.11.5 Positioning. Draft hoods and draft regulators 
shall be installed in the position for which they were 
designed with reference to the horizontal and vertical 
planes and shall be located so that the relief opening is 
not obstructed by a part of the appliance or adjacent con- 
struction. The appliance and its draft hood shall be 
located so that the relief opening is accessible for check- 
ing vent operation. [NFPA 54: 12. 1 3.6] 

509-11.6 Clearance. A draft hood shall be located so that 
its relief opening is not less than 6 inches (152 mm) from 
a surface except that of the appliance it serves and the 
venting system to which the draft hood is connected. 
Where a greater or lesser clearance is indicated on the 
appliance label, the clearance shall not be less than that 
specified on the label. Such clearances shall not be 
reduced. [NFPA 54: 12.13.7] 

509.12 Manually Operated Dampers. A manually operated 
damper shall not be placed in an appliance vent connector. 
Fixed baffles shall not be classified as manually operated 
dampers. [NFPA 54:12.14] 

509.13 Automatically Operated Vent Dampers. An auto- 
matically operated vent damper shall be of a listed type. 
[NFPA 54: 12. 15] 

509.14 Obstructions. Devices that retard the flow of vent 
gases shall not be installed in a vent connector, chimney, or 
vent. The following shall not be considered as obstructions: 

(1 ) Draft regulators and safety controls specifically listed for 
installation in venting systems and installed in accor- 
dance with the manufacturer's installation instructions. | 

(2) Approved draft regulators and safety controls designed 
and installed in accordance with approved engineering 
methods. 

(3) Listed heat reclaimers and automatically operated vent 
dampers installed in accordance with the manufacturer's I 
installation instructions. S 

(4) Vent dampers serving listed appliances installed in accor- 
dance with Section 5 1 0.0 or other approved engineering 
methods. 

(5) Approved economizers, heat reclaimers, and recupera- 
tors installed in venting systems of appliances not 
required to be equipped with draft hoods, provided the 
appliance manufacturer's installation instructions cover 1 
the installation of such a device in the venting system 
and performance in accordance with Section 509.3 and 
Section 509.3.1 is obtained. [NFPA 54:12.16] 

510.0 Sizing of Category I Venting Systems. 

510.1 Installation. These venting tables shall not be used 
where obstructions are installed in the venting system. The I 



2013 CALIFORNIA PLUMBING CODE 



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installation of vents serving listed appliances with vent 

I dampers shall be installed in accordance with the appliance 
manufacturer's installation instructions or in accordance with 
the following: 

( 1 ) The maximum capacity of the vent system shall be deter- 
mined using the N AT Max column. 

(2) The minimum capacity shall be determined as though the 
appliance were a fan-assisted appliance, using the FAN 
Min col umn to determine the minimum capacity of the 
vent system. Where the corresponding "FAN Min" is 
"NA", the vent configuration shall not be permitted and 
an alternative venting configuration shall be utilized. 
[NFPA 54:13.1 .1] 

510.1.1 Vent Downsizing. Where the vent size deter- 
mined from the tables is smaller than the appliance draft 
hood outlet or flue collar, the use of the smaller size shall 
be permitted provided that the installation is in accor- 
dance with the following requirements: 

(1) The total vent height (H) is not less than 10 feet 
(3048 mm). 

(2) Vents for appliance draft hood outlets or flue collars 
12 inches (305 mm) in diameter or smaller are not 
reduced more than one table size. 

(3) Vents for appliance draft hood outlets or flue collars 
exceeding 12 inches (305 mm) in diameter are not 
reduced more than two table sizes. 

(4) The maximum capacity listed in the tables for a fan- 
assisted appliance is reduced by 10 percent (0.90 x 
maximum table capacity). 

(5) The draft hood outlet exceeds 4 inches (102 mm) in 

I diameter. A 3 inch (76 mm) diameter vent shall not 
be connected to a 4 inch (102 mm) diameter draft 
hood outlet. This provision shall not apply to fan- 
assisted appliances. [NFPA 54: 13. 1.2] 

510.1.2 Elbows. Single-appliance venting configurations 
with zero lateral lengths in Table 510.1.2(1), Table 
510.1.2(2 ), and Table 510.1.2(5) shall not have elbows in 
the venting system. Single-appliance venting with lateral 

S lengths, include two 90 degree (1.57 rad) elbows. For 
each additional elbow up to and including 45 degrees 
(0.79 rad), the maximum capacity listed in the venting 
tables shall be reduced by 5 percent. For each additional 
elbow greater than 45 degrees (0.79 rad) up to and 
including 90 degrees (1.57 rad), the maximum capacity 
listed in the venting tables shall be reduced by 10 per- 
cent. Where multiple offsets occur in a vent, the total lat- 
eral length of offsets combined shall not exceed that 
specified in Table 510.1 .2(1) through Table 510.1.2(5). 
[NFPA 54: 13.1.3] 

510.1-3 Zero Lateral. Zero lateral (L) shall apply to a 
straight vertical vent attached to a top outlet draft hood or 
Hue collar. [NFPA 54:13.1.4] 

510.1.4 High-Altitude Installations. Sea level input rat- 
ings shall be used where determining maximum capacity 



for high-altitude installation. Actual input (derated for 
altitude) shall be used for determining minimum capac- 
ity for high-altitude installation. [NFPA 54: 13.1 .5] 

510.L5 Multiple Input Ratings,. For appliances with 
more than one input rate, the minimum vent capacity 
(FAN Min) determined from the tables shall be less than 
the lowest appliance input rating, and the maximum vent 
capacity (FAN Max/ NAT Max) determined from the 
tables shall exceed the highest appliance rating input. 
[NFPA 54: 13. 1.6] 

510.1.6 Corrugated Chimney Liner Reduction. Listed 
corrugated metallic chimney liner systems in masonry 
chimneys shall be sized by using Table 510.1.2(1) or 
Table 510.1.2(2) for Type B vents with the maximum 
capacity reduced by 20 percent (0.80 x maximum capac- 
ity) and the minimum capacity as shown in Table 
510.1.2(1) or Table 510.1.2(2). 

Corrugated metallic liner systems installed with 
bends or offsets shall have their maximum capacity fur- 
ther reduced in accordance with Section 510.1.2. The 20 
percent reduction for corrugated metallic chimney liner 
systems includes an allowance for one long radius 90 
degree (.1.57 rad) turn at the bottom of the liner. [N FPA 
54:13.1.7] 

510.1.7 Connection to Chimney Liners. Connections 
between chimney liners and listed double-wall connec- 
tors shall be made with listed adapters designed for such 
purposes. [NFPA 54:13.1.8] 

510.1.8 Vertical Vent Upsizing Using 7 x Rule. Where 
the vertical vent has a larger diameter than the vent con- 
nector, the vertical vent diameter shall be used to deter- 
mine the minimum vent capacity, and the connector 
diameter shall be used to determine the maximum vent 
capacity. The flow area of the vertical vent shall not 
exceed seven times the flow area of the listed appliance 
categorized vent area, flue collar area, or draft hood out- 
let area unless designed in accordance with approved 
engineering methods. [NFPA 54: 13.1 .9] 

510.1.9 Draft Hood Conversion Accessories. Draft 
hood conversion accessories for use with masonry chim- 
neys venting listed Category I fan-assisted appliances 
shall be listed and installed in accordance with the listed 
accessory manufacturer's installation instructions. 
[NFPA 54:13.1.10] 

510.1.10 Chimney and Vent Locations. Table 
510.1.2(1) through Vable 510.1.2(5) shall be used for 
chimneys and vents not exposed to the outdoors below 
the roof l ine. A Type B vent or listed chimney lining sys- 
tem passing through an unused masonry chimney flue 
shall not be considered to be exposed to the outdoors. 
Where vents extend outdoors above the roof more than 5 
feet (1524 mm) higher than required by Table 509.6.2, 
and where vents terminate in accordance with Section 
509.6.2(1 ), the outdoor portion of the vent shall be 



94 



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enclosed as required by this section for vents not con- 
sidered to be exposed to the outdoors or such venting sys- 
tem shall be engineered. A Type B vent passing through 
an un ventilated enclosure or chase insulated to a value 
of not less than R-8 shall not be considered to be exposed 
to the outdoors. Table 510.1.2(3) in combination with 
Table 51 0.1 .2(6) shall be used for clay-tile-lined exterior 
J masonry chimneys, provided the following requirements 
are met: 

(1) The vent connector is Type B double wall. 

(2) The vent connector length is limited to 1 8 inches per 
inch (18 mm/mm) of vent connector diameter. 

(3) The appliance is draft hood-equipped. 

(4) The input rating is less than the maximum capacity 
given in Table 510.1.2(3). 

(5) For a water heater, the outdoor design temperature 
shall be not less than 5°F (-15°C). 

(6) For a space-heating appliance, the input rating 
exceeds the minimum capacity given by Table 
510.1.2(6). [NFPA 54-12:13.1.11] 

510.1.11 Corrugated Vent Connector Size. Corrugated 
vent connectors shall not be smaller than the listed appli- 
ance categorized vent diameter, flue collar diameter, or 
draft hood outlet diameter. [NFPA 54:13.1.12] 

510.1.12 Upsizing. Vent connectors shall not be upsized 
more than two sizes exceeding the listed appliance cate- 
gorized vent diameter, flue collar diameter, or draft hood 
outlet diameter. [NFPA 54:13.1.13] 

510.1.13 Single Run of Vent In a single run of vent or 
vent connector, more than one diameter and type shall 
be permitted to be used, provided that the sizes and types 
are permitted by the tables. [NFPA 54: 1 3. 1 . 1 4] 

510.1.14 Interpolation. Interpolation shall be permitted 
I in calculating capacities for vent dimensions that fall 

between table entries. [NFPA 54:13.1.15] 

510.1.15 Extrapolation. Extrapolation beyond the table 
entries shall not be permitted. [NFPA 54: 13. 1.16] 

510.1.16 Engineering Methods. For vent heights lower 
than 6 feet (1829 mm) and higher than vent heights 
shown in the tables, engineering methods shall be used to 
calculate vent capacities. [NFPA 54:1 3.1.17] 

510.1.17 Height Entries. Where the actual height of a 
vent falls between entries in the height column of the 
applicable table in Table 510.1.2(1) through Table 
5 10. 1.2(6), either: 

(1) Interpolation shall be used. 

(2) The lower vent capacity shown in the table entries 
shall be used for FAN Max and NAT Max column 
values and the higher vent capacity shall be used for 
the FAN Min column values. [NFPA 54-12:13.1.18] 

510.2 Additional Requirements to Multiple Appliance 
Vent Table 510.2(1) through Table 510.2(9). These venting 
| tables shall not be used where obstructions are instal led in the 



venting system. The installation of vents serving listed appli- 
ances with vent dampers shall be installed in accordance with 1 
the appliance manufacturer's installation instructions or in | 
accordance with the following: 

(1) The maximum capacity of the vent connector shall be 
determined using the N AT Max column. 

(2) The maximum capacity of the vertical vent or chimney 
shall be determined using the FAN + N AT column where 
the second appliance is a fan-assisted appliance, or the 
NAT + NAT column where the second appliance is 
equipped with a draft hood. 

(3) The minimum capacity shall be determined as if the 
appliance were a fan-assisted appliance. 

(a) The minimum capacity of the vent connector shall 
be determined using the FAN Min column. 

(b) The FAN + FAN column shall be used where the 
second appliance is a fan-assisted appliance, and the 
FAN + NAT column shall be used where the second 
appliance is equipped with a draft hood, to deter- 
mine whether the vertical vent or chimney configu- 
ration is not permitted (NA). Where the vent 
configuration is N A, the vent configuration shall not 
be permitted and an alternative venting configura- 
tion shall be utilized. [NFPA 54: 13.2.1] 

510.2.1 Vent Connector Maximum Length. The max- j 
imum vent connector horizontal length shall be 1 8 inches | 
per inch (18 mm/mm) of connector diameter as shown 
in Table 510.2.1, or as permitted by Section 510.2.2. 1 
[NFPA 54-12:13.2.2] 

510.2.2 Vent Connector Exceeding Maximum Length. 
The vent connector shall be routed to the vent utilizing 
the shortest possible route. Connectors with longer hor- 
izontal lengths than those listed in Table 5 10.2. 1 are per- 
mitted under the following conditions: 

(1) The maximum capacity (FAN Max or NAT Max) of 
the vent connector shall be reduced 10 percent for 
each additional multiple of the length listed in Table 
510.2.1. For example, the length listed for a 4 inch 
(102 mm) connector shall not exceed 6 feet (1829 
mm). With a connector length exceeding 6 feet (1 829 
mm) but not exceeding 1 2 feet (3658 mm), the max- 
imum capacity shall be reduced by 10 percent (0.90 x 
maximum vent connector capacity). With a connector 
length exceeding 12 feet (3658 mm) but not exceed- 
ing 18 feet (5486 mm), the maximum capacity shall 
be reduced by 20 percent (0.80 x maximum vent 
capacity). 

(2) For a connector serving a fen-assisted appliance, the 
minimum capacity (FAN Min) of the connector shall 
be determined by referring to the corresponding sin- 
gle appliance table. For Type B double-wall con- 
nectors, Table 510.1.2(1) shall be used. For 
single-wall connectors, Table 510.1.2(2) shall be 
used. The height (H) and lateral (L) shall be meas- 



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ured according to the procedures for a single appli- 
ance vent, as if the other appliances were not pres- 
ent. [NF.PA 54: .13.2.3] 

510.2.3 Ten Percent Reduction. Where the vent connec- 
tors are combined prior to entering the vertical portion of 
the common vent to form a common vent manifold, the 
si ze of the common vent man ifol d and the common vent 
shall be determined by applying a 10 percent reduction 
(0.90 x maximum common vent capacity) to the Com- 
mon Vent Capacity part of the common vent tables. The 
length of the common vent connector manifold (LM) shall 
not exceed 18 inches per inch (18 mm/mm) of common 

1 vent diameter (D). [NFPA 54: 1 3.2.4] 

510.2.4 Vent Offset. Where the common vertical vent is 
offset, the maximum capacity of the common vent shall 
be reduced in accordance with Section 510.2.5, and the 
horizontal length of the common vent offset shall not 
exceed 18 i nches per inch (1 8 mm/mm) of common vent 
diameter. Where multiple offsets occur in a common 
vent, the total horizontal length of offsets combined shall 
not exceed 18 inches per inch (18 mm/mm) of common 
vent diameter. [N.F.PA 54: 13.2.5] 

510.2.5 Elbow Reduction. For each elbow up to and 
including 45 degrees (0.79 rad) in the common vent, the 
maximum common vent capacity listed in the venting 
tables shall be reduced by 5 percent. For each elbow 
exceeding 45 degrees (0.79 rad) up to and including 90 
degrees ( 1 .57 rad), the maximum common vent capacity 
listed in the venting tables shall be reduced by 10 per- 
cent. [NFPA 54:1.3.2.6] 

510.2.6 Common Vent Minimum Size. The cross-sec- 
tional area of the common vent shall be equal to or 
exceeding the cross-sectional area of the largest connec- 
tor. [NFPA 54: 13.2.8] 

51 0.2.7 Tee and Wye Fittings. Tee and wye fittings con- 
nected to a common gas vent shall be considered as part 
of the common gas vent and constructed of materials 
consistent with that of the common gas vent. [NFPA 
54:13.2.9] 

510.2.8 Size of Fittings. At the point where tee or wye 
| fittings connect to a common gas vent, the opening size 

of the fitting shall be equal to the size of the common 
vent. Such fittings shall not be prohibited from having 
reduced size openings at the point of connection of appli- 
1 ance gas vent connectors . [NFPA 54:13.2.10] 

510.2.9 High-Altitude Installations, Sea level input rat- 
ings shall be used where determining maximum capacity 
for high-altitude installation. Actual input (derated for 
altitude) shall be used for determining minimum capac- 
ity for high-altitude installation. [NFPA 54:13.2.1 1] 

510.2.10 Connector Rise. The connector rise (R) for 
each appliance connector shall be measured from the 
draft hood outlet or flue collar to the centerline where the 
vent gas streams come together. [NFPA 54:13.2. 12] 



510.2.11 Vent Height. For multiple units of appliances I 
located on one floor, total height (H) shall be measured | 
from the highest draft hood outlet or flue collar up to the 
level of the outlet of the common vent. [NFPA 
54:13.2.13] 

510.2.12 Multistory Installations. For multistory instal- 
lations, total height (H) for each segment of the system | 
shall be the vertical distance between the highest draft 
hood outlet or flue collar entering that segment and the 
centerline of the next higher interconnection tee. [N FPA | 
54:13.2.14] 

510.2.13 Size of Vents for Multistory Installations. The 

size of the lowest connector and of the vertical vent lead- 
ing to the lowest interconnection of a multistory system 
shall be in accordance with Table 510.1.2(1) or Table 
5 10.1 .2(2) for available total height (H) up to the lowest 
interconnection. [NFPA 54: 1 3.2. 1 5] | 

510.2.14 Vent Type Multistory Installations. Where 
used in multistory systems, vertical common vents shall 
be Type B double-wall and shall be installed with a listed 
vent cap. [NFPA 54:13.2.1 6] 

510.2.15 Offsets in Multistory Installations. Offsets in 
multistory common vent systems shall be limited to a 
single offset in each system, and systems with an offset 
shall comply with the following: 

(1) The offset angle shall not exceed 45 degrees (0.79 
rad) from vertical. 

(2) The horizontal length of the offset shall not exceed 
18 inches per inch (18 mm mm ) of common vent 
diameter of the segment in which the offset is 
located. 

(3) For the segment of the common vertical vent con- 
taining the offset, the common vent capacity listed in 

TABLE 510.2.1 
VENT CONNECTOR MAXIMUM LENGTH 
[NFPA 54: TABLE 13.2.2] 

CONNECTOR DIAMETER MAXIMUM CONNECTOR j 

(inches) HORIZONTAL LENGTH (feet) 

4 " " j 6 " i 

6 " ~ '| ~ 9 

7 ~ ! IO/2 

8 j" " 12 

9 j 13'/: 

10 15 
12 | 18 
14 i 21 
16 i 24 
18 ! ' 27 
20 | 30 

" 22 ~ I 33 

24 ! ' 36 
For SI units: 1 inch = 25.4 mm, I fool = 304.8 mm 



96 



2013 CALIFORNIA PLUMBING CODE 



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the common venting tables shall be reduced by 20 
percent (0.80 x maximum common vent capacity). 

(4) A multistory common vent shall not be reduced in 
size above the offset. [NFPA 54: 13.2. 17] 

510.2.16 Flow Area of Vent. Where two or more appli- 
ances are connected to a vertical vent or chimney, the 
flow area of the largest section of vertical vent or chim- 
ney shall not exceed seven times the smallest listed appli- 
ance categorized vent areas, flue collar area, or draft 
hood outlet area unless designed in accordance with 
approved engineering methods. [NFPA 54:13.2.18] 

510.2.17 Multiple Input Ratings. For appliances with 
more than one input rate, the minimum vent connector 
capacity (FAN Min) determined from the tables shall be 
less than the lowest appliance input rating, and the max- 
imum vent connector capac ity (FAN Max or NAT Max) 
determined from the table shall exceed the highest appli- 
ance input rating. [NFPA 54:13.2.19] 

510.2.18 Corrugated Metallic Chimney Liner Reduc- 
tion. Listed corrugated metallic chimney liner systems 
in masonry chimneys shall be sized by using Table 
510.2(1) or Table 510.2(2) for Type B vents, with the 
maximum capacity reduced by 20 percent (0.80 x maxi- 
mum capacity) and the minimum capacity as shown in 
Table 510.2(1) or Table 510.2(2). Corrugated metallic 
liner systems installed with bends or offsets shall have 
their maximum capacity further reduced in accordance 
with Section 510.2.4 and Section 510.2.5. The 20 per- 
cent reduction for corrugated metall ic chimney liner sys- 
tems includes an allowance for one long radius 90 degree 
(1.57 rad) turn at the bottom of the liner. [NFPA 
54:13.2.20] 

510.2.19 Chimneys and Vents. Table 510.2(1) through 
Table 510.2(5) shall be used for chimneys and vents not 
exposed to the outdoors below the roof line. A Type B 
vent passing through an unventilated enclosure or chase 
insulated to a value of not less than R-8 shall not be con- 
sidered to be exposed to the outdoors. Where vents 
extend outdoors above the roof more than 5 feet (1524 
mm) higher than required by Table 509.6.2, and where 
vents terminate in accordance with Section 509.6.2(1), 
the outdoor portion of the vent shall be enclosed as 
required by this section for vents not considered to be 
exposed to the outdoors or such venting system shall be 
engineered. Table 510.2(6) through Table 510.2(9) shall 
be used for clay-tile-lined exterior masonry chimneys, 
provided the following conditions are met: 

(1) Vent connector is Type B double- wall. 

(2) One appliance is draft hood-equipped. 

(3) The combined appliance input rating is less than the 
maximum capacity given by Table 510.2(6) (for 
NAT + NAT) or Table 5 10.2(8) (for FAN + N AT). 

(4) The input rating of each space-heating appliance 
exceeds the minimum input rating given by Table 



510.2(7) (for N AT + N AT) or Table 510.2(9) (for 
FAN -!- NAT). 

(5) The vent connector sizing is in accordance with 
Table 510.2(3). [NFPA 54-1 2: 13.2.22] 

510.2.20 Vent Connector Size Limitations. Vent con- 
nectors shall not be increased more than two sizes 
exceeding the listed appliance categorized vent diame- 
ter, flue collar diameter, or draft hood outlet diameter. 
Vent connectors for draft hood-equipped appliances shall 
not be smaller than the draft hood outlet diameter. Where 
vent connector sizes determined from the tables for fan- 
assisted appliances are smaller than the flue collar diam- 
eter, the use of the smaller sizes shall be permitted 
provided that the installation is in accordance with the 
following conditions: 

(1) Vent connectors for fan-assisted appliance Hue col- 
lars 12 inches (305 mm) in diameter or smaller are 
not reduced by more than one table size [e.g., 12 
inches to 10 inches (305 mm to 254 mm) is a one 
size reduction] and those exceeding 12 inches (305 
mm) in diameter are not reduced exceeding two 
table sizes [e.g., 24 inches to 20 inches (610 mm to 
508 mm) is a two size reduction]. 

(2) Fan-assisted appliances are common vented with a 
draft hood -equipped appliance. 

(3) The vent connector has a smooth interior wall. 
[NFPA 54: 13.2.24] 

510.2.21 Combination of Pipe Types and Sizes. Com- 
binations of pipe sizes, single-wall, and double-wall 
metal pipe shall be allowed within a connector run or 
within the common vent, provided the appropriate tables S 
permit the desired sizes and types of pipe, where they j 
were used for the entire length of the subject connector 
or vent. Where single-wall and Type B double-wall metal 
pipes are used for vent connectors within the same vent- 
ing system, the common vent shall be sized in accor- 
dance with Table 510.2(2) or Table 510.2(4). [NFPA 
54:13.2.25] 

510.2.22 Multiple Connector and Vent Sizes. Where a 
table permits more than one diameter of pipe to be used 
for a connector or vent, the permitted sizes shall be per- 
mitted to be used. [NFPA 54: 13.2.26] 

510.2.23 Interpolation. Interpolation shall be permitted 
in calculating capacities for vent dimensions that fall 
between table entries. [NFPA 54: 13.2.27] J 

510.2.24 Extrapolation. Extrapolation beyond the table 
entries shall not be permitted. [NFPA 54: 1 3.2.28] 

510.2.25 Engineering Methods. For vent heights lower 
than 6 feet (1 829 mm) and exceeding vent heights shown 
in the tables, engineering methods shall be used to cal- 
culate vent capacities. [NFPA 54:13.2.29] 

510.2.26 Height Entries. Where the actual height of a 
vent falls between entries in the height column of the 
applicable table in Table 510.2(1) through Table 
510.2(9), either: 



2013 CALIFORNIA PLUMBING CODE 



97 



WATER HEATERS 



(1) Interpolation shall be used. 

(2) The lower vent capacity shown in the table entries 
shall be used for FAN Max and NAT Max column 
values and the higher vent capacity shall be used for 
the FAN Min column values. [NFPA 54-12:1 3.2.30] 

511.0 Direct-Vent Appliances. 

511.1 General Listed direct-vent appliances shall be con- 
sidered properly vented where installed in accordance with 
the terms of its listing, the manufacturer's instructions, and 
Section 509.8.2. [NFPA 54: 12.3.5] 



98 



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99% Winter Design Temperatures for the Contiguous United States 

This map is a necessarily generalized guide to temperatures in the contiguous United States. Temperatures shown for areas 
such as mountainous regions and large urban centers may not ce accurate. The data used to develop this map are from the 
1 993 ASHRAE Handbook — Fundamentals (Chapter 24, Table 1 Climate Conditions for the United States). 
For 99% winter design temperatures in Alaska, consult the ASHRAE Handbook — Fundamentals. 
99% winter design temperatures for Hawaii are greater than 37T. 

For SI units:°C = (°F-32)/1.8 

FIGURE 510.1.2(6) 

RANGE OF WINTER DESIGN TEMPERATURES USED IN ANALYZING EXTERIOR MASONRY CHIMNEYS IN THE UNITED STATES 

[NFPA54: FIGURE G.2.4] 



2013 CALIFORNIA PLUMBING CODE 



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WATER HEATERS 



TABLE 510.1.2(1) 

TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(a)]* 



NUMBER OF APPLIANCES: 


SINGLE 


APPLIANCE TYPE: 


CATEGORY I 



APPLIANCE VENT CONNECTION: CONNECTED DIRECTLY TO VENT 
VENT DIAMETER - D (inch) 
3 4 5 6 7 



APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



HEIGHT 


LATERAL 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


H 

(feet) 


L 

(feet) 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 


o 





78 


46 





152 


86 





251 


141 





375" 


205 





524 


285 




2 


13 


51 


36 


18 


97 


67 


27 


157 


105 


32 


232 


157 


44 


321 


217 




4 


21 


49 


34 


30 


94 


64 


39 


153 


1 03 


50 


227 


1 53 


66 


316 


21 1 




6 


25 


46 


32 


36 


91 


61 


47 


149 


100 


59 


223 


149 


78 


310 


205 










X4 


50 


o 


1 65 


94 




yj 


Z 1 U 


155 




yj 


4 1 5 

t 1 J 


235 


n 

U 


JOJ 


320 




2 


1 ? 

1 Z 


S7 

/ 


40 


l f\ 


1 00 


75 


75 

z j 


1 / o 


120 


9 8 

Zo 


3M 
^U3 


180 


40 
HZ 


30 J 


247 




5 


23 


53 


38 


32 


103 


71 


42 


171 


115 


53 


255 


173 


70 


356 


237 




8 


28 


49 


35 


39 


98 


66 


51 


164 


109 


64 


247 


165 


84 


347 


227 


10 





o 

u 


88 
oo 


53 




1 75 


100 " 


yt 


3Q5 


166 



u 


447 
tt / 


255 


o 

u 


UJ) 1 


345 




2 


P 
i 


A 1 


42 


1 7 

i / 


l l o 


81 


9 3 

Z3 


1 Q4 


129 


zo 


780 


195 


tW 




273 




5 




57 


40 


3? 


1 1 3 


77 


4 1 


1 87 

1 o / 


124 


57 


^80 

aOU 


188 


/S8 
Oo 


3 VZ 


263 




10 


30 


5 I 


36 


41 


104 


70 


54 

jt 


1 76 


115 


67 


267 


175 


88 


37rt 


245 


15 





A 


a ,1 
94 


' 58 





i a i 


112 


A 


327 


187 





502 


285 





7 16 


390 




2 


1 1 


69 


48 


15 


136 


93 


20 


226 


150 


22 


339 


225 


38 


475 


316 




5 


22 


65 


45 


30 


1 30 


87 


39 


2 1 9 


142 


49 


330 


217 


64 


463 


300 




10 


29 


59 


41 


40 


121 


82 


3 1 


206 


135 


64 


315 


208 


84 


445 


288 




15 


35 


53 


37 


48 


1 J2 


76 


61 


195 


128 


76 


301 


198 


98 


429 


275 


20 








97 


61 





202 


119 





349 


202 





540 


307 





776 


430 




2 


10 


75 


51 


14 


149 


100 


18 


250 


166 


20 


377 


249 


33 


531 


346 




5 


21 


7l 


48 


29 


143 


96 


38 


242 


160 


47 


367 


241 


62 


519 


337 




10 


28 


64 


44 


38 


133 


89 


50 


229 


150 


67 


35 1 


228 


81 


499 


321 




15 


34 


58 


40 


46 


1 24 


84 


50 


9 1 7 


142 


73 


337 


217 


04 


to I 


308 




20 


4X 

to 


52 


35 


55 


1 1 


78 




206 


134 


84 

Ot 


322 


206 


1 07 

i yj 1 


4^4 
tut 


295 


30 


o 





1 00 


64 ' 





213 


128 ' 


6 


374 


220 





587 


336 





853 


475 




2 


9 


81 


56 


13 


166 


112 


14 


283 


185 


18 


432 


280 


27 


613 


394 




5 


2 1 


77 


54 


28 


1 60 


108 


36 


275 


176 


45 


421 


273 


58 


600 


385 




10 


27 


70 


50 


37 


150 


102 


48 


262 


171 


39 


405 


261 


77 


580 


371 




15 


33 


64 


NA 


44 


141 


96 


57 


249 


163 


70 


389 


249 


90 


560 


357 




20 


56 


58 


NA 


53 


1 32 


90 


66 


237 


154 


80 


374 


237 


102 


542 


343 




30 


NA 


NA 


NA 


73 


113 


NA 


88 


214 


NA 


104 


346 


219 


131 


507 


321 


50 


o 





101 


67 


o 


216 


134 





397 


232 





633 


363 





932 


" 518 




2 


8 


86 


61 


1 1 


183 


122 


14 


320 


206 


15 


497 


314 


22 


715 


445 




5 


20 


82 


NA 


27 


177 


119 


35 


312 


200 


43 


487 


308 


55 


702 


438 




10 


26 


76 


NA 


35 


168 


1 14 


45 


299 


190 


56 


471 


298 


73 


681 


426 




15 


59 


70 


NA 


42 


158 


NA 


54 


287 


180 


66 


455 


288 


85 


662 


413 




20 


NA 


NA 


NA 


50 


149 


NA 


63 


275 


169 


76 


440 


278 


97 


642 


401 




30 


NA 


NA 


NA 


69 


131 


NA 


84 


250 


NA 


99 


410 


259 


123 


605 


376 


100 





NA 


NA 


NA 





218 


NA 





"'"407" 


NA 





665 


400 





997 


560 




2 


NA 


NA 


NA 


10 


194 


NA 


12 


354 


NA 


13 


566 


375 


18 


831 


510 




5 


NA 


NA 


NA 


26 


189 


NA 


33 


347 


NA 


40 


557 


369 


52 


820 


504 




10 


NA 


NA 


NA 


33 


182 


NA 


43 


335 


NA 


53 


542 


361 


68 


801 


493 






NA 


NA 


NA 


40 


174 


NA 


50 


321 


NA 


62 


528 


353 


80 


782 


482 




20 


NA 


NA 


NA 


47 


166 


NA 


59 


311 


NA 


71 


513 


344 


90 


763 


471 




30 


NA 


NA 


NA 


NA 


NA 


NA 


78 


290 


NA 


92 


483 


NA 


115 


726 


449 




50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


147 


428 


NA 


180 


651 


405 



For SI units: I inch = 25.4 mm, 1 I'ooi = 304.8 mm, 1000 British thermal units per hour = 0.293 kW. I square inch = 0.000645 m 2 
* NA: Not applicable. 



100 



2013 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 510.1.2(1) 

TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(a)] (continued) 



NUMBER OF APPLIANCES: 


SINGLE 


APPLIANCE TYPE: 


CATEGORY I 


APPLIANCE VENT CONNECTION: 


CONNECTED DIRECTLY TO VENT 



VENT DIAMETER - D (inch) 
8 9 10 12 14 

APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



HEIGHT 


LATERAL 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


H 

(feet) 


L 

(feet) 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 





n 

u 


O./o 


370 


u 


07/ 


470 


u 


1171 
1 1 Z 1 


570 


A 

\f 


1 A4s 

! OH- J 


850 


A 

u 


11 «l 

zzo / 


1170 




2 


S's 

JJ 


47 S 


285 


OJ 


S41 
34 J 


370 


7^ 

/ j 


&1$ 

/ J 


455 


l ftl 

1 Kt J 


voz 


650 


l j 


1 14A 
1 J40 


890 




4 


7Q 


4 1 Q 
4 J / 


279 


m 

VJ 


J JO 


362 


1 1 n 
1 1 u 


00 


445 


1 Al 
1 4 / 


07^ 

/ / J 


640 


1 1 


1 J Jo 


880 




6 


yj 


A 1 1 
4 1 J 


273 


! 1 u 


^Ift 


354 


1 7 V 
1 Zo 


00 1 


435 


1 7 1 
1 / 1 


0A7 

Vo / 


630 


7 I 
Z 1 7 


I JJU 


870 




n 
u 





780 


H J J 





1006 


S17 





1261 


oou 





1858 







2571 


1 JZU 




2 


CA 

jU 


.lot 

4ftj 




/A 

50 


6 1 9 


41 9 
-f l 


71 


770 


$] $ 

J 1 J 


98 


1 124 


1A$ 

/4j 


1 ~> A 
1 j() 


1543 


1 UZU 




5 


O "» 
OJ 


4 /J 


313 


nn 


/AT 

607 


407 


1 1 5 


758 


503 


1 54 


1110 


733 


1 99 


1528 


1010 




8 




/I/O 

4o3 


303 


1 1 / 


en/ 

596 


396 


I J 7 


746 


490 


1 80 


1097 


720 


23 1 


1514 


1000 


I 
l u 


n 





847 


4sn 





1096 


JOJ 





1377 


ik\ 

1 zu 





2036 


1 OAft 
1 UOU 





2825 


1 4jU 






48 


533 


^\ 


57 


684 


zK7 
4 J / 


68 


852 


<\ AO. 
jOU 


93 


1244 


ojU 


124 


1713 


1 ljU 




J 


81 


522 


j'tD 


95 


671 


44 A 
440 


112 


839 


J4 / 


149 


1229 


oZV 


192 


1696 


1 1 U J 




1 n 

1 U 


104 


504 


J J u 


122 


651 


All 
4Z / 


142 


817 


JZ J 


187 


1204 


7CK 

/ Vj 


238 


1669 


1 ftQft 


15 








970 


525 





1263 


682 





1596 


840 





2380 


1240 





3323 


1720 




z 


45 


633 


414 


53 


815 


544 


63 


1019 


675 


86 


1495 


985 


1 14 


2062 


1350 




c 

J 


76 


620 


403 


90 


800 


529 


105 


1003 


660 


140 


1476 


967 


182 


2041 


1 327 




1 A 


99 


600 


386 


116 


777 


507 


1 35 


977 


635 


177 


1446 


936 


227 


2009 


1289 




1 J 


115 


580 


O "7 O 


134 


755 


1 n 1 

491 


155 


953 


610 


202 


1418 


905 


257 


1976 


1250 


20 








1057 


575 





1384 


"752 





1756 


930 





2637 


1350 





3701 


1900 




2 


41 


711 


470 


50 


917 


612 


59 


1 150 


755 


81 


1694 


1100 


107 


2343 


1520 




5 


73 


697 


460 


86 


902 


599 


I0l 


1133 


738 


135 


1674 


1079 


174 


2320 


1.498 




1 n 

1 u 


95 


675 


aai 
44 j 


112 


877 


^7A 

J /o 


130 


1105 


7 1 n 
/ 1 u 


172 


1641 


IU4j 


220 


2282 


1 4oU 




! J 


1 1 1 


654 


4Z / 


129 


853 


JJ / 


1 50 


1078 


Don 


195 


1609 


i ni ^ 
IU 1 


248 


2245 


1 Al\ 

I4zj 





ZO 


125 


634 


4 1 ft 
4 I U 


145 


830 


JJ/ 


167 


1052 


t*&$ 
OO J 


217 


1578 


onn 


273 


2210 


1 jyu 


30 








1173 


650 





1 548 


855 





"""1977 


1060 





3004 


1550 





4252 


2170 




2 


33 


826 


535 


42 


1072 


700 


54 


1351 


865 


74 


2004 


1310 


98 


2786 


1800 




5 


69 


811 


524 


82 


1055 


688 


96 


1332 


851 


127 


1981 


1289 


164 


2759 


1775 




10 


91 


788 


507 


107 


1028 


668 


1 25 


1301 


829 


164 


1944 


1254 


209 


2716 


1733 




15 


105 


765 


490 


124 


1 002 


648 


143 


1272 


807 


187 


1908 


1220 


237 


2674 


1692 




20 


119 


743 


473 


139 


977 


628 


160 


1243 


784 


207 


1873 


1185 


260 


2633 


1650 




30 


149 


702 


444 


171 


929 


594 


195 


1189 


745 


246 


1807 


1130 


305 


2555 


1585 


50 


o 


o 


1297 


708 





1730 


952 





2231 


1195 





3441 


1825 





4934 


2550 




2 


26 


975 


615 


33 


1276 


813 


41 


1620 


1010 


66 


243 1 


1513 


86 


3409 


2125 




5 


65 


960 


605 


77 


1259 


798 


90 


1600 


996 


118 


2406 


1495 


151 


3380 


2102 




10 


86 


935 


589 


101 


1230 


773 


118 


1567 


972 


154 


2366 


1466 


196 


3332 


2064 




15 


100 


911 


572 


117 


1203 


747 


136 


1536 


948 


177 


2327 


1437 


222 


3285 


2026 




20 


113 


888 


556 


131 


1176 


722 


151 


1505 


924 


195 


2288 


1408 


244 


3239 


1987 




30 


141 


844 


522 


161 


1 125 


670 


183 


1446 


876 


232 


2214 


1349 


287 


3150 


1910 


loo 








1411 


770 





1908 


1040 





2491 


1310 





3925 


2050 





5729 


2950 




2 


21 


1155 


700 


25 


1 536 


935 


30 


1975 


1170 


44 


3027 


1820 


72 


4313 


2550 




5 


60 


1 141 


692 


71 


1519 


926 


82 


1955 


1159 


107 


3002 


1803 


136 


4282 


2531 




10 


80 


1 1 18 


679 


94 


1492 


910 


108 


1923 


1142 


142 


2961 


1775 


180 


423 1 


2500 




15 


93 


1095 


666 


109 


1465 


895 


126 


1892 


1124 


163 


2920 


1747 


206 


4182 


2469 




20 


105 


1073 


653 


122 


1438 


880 


141 


1861 


1107 


181 


2880 


1719 


226 


4133 


2438 




30 


131 


1029 


627 


149 


1387 


849 


170 


1802 


1071 


215 


2803 


1663 


265 


4037 


2375 




50 


197 


944 


575 


217 


1288 


787 


241 


1688 


1000 


292 


2657 


1550 


350 


3856 


2250 



For SI units: ! inch = 25.4 mm. 1 foot - 304.8 mm. 1000 British thermal units per hour = 0.293 kW. I square inch = 0.000645 nr 



2013 CALIFORNIA PLUMBING CODE 



101 



WATER HEATERS 



TABLE 510.1.2(1) 

TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(a)] (continued) 

NUMBER OF APPLIANCES: SINGLE 

APPLIANCE TYPE: CATEGORY I 
APPLIANCE VENT CONNECTION: CONNECTED DIRECTLY TO VENT 
VENT DIAMETER - D (inch) 
16 18 20 22 24 



APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



HEIGHT 
H 

(feet) 


LATERAL 
L 

(feet) 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 








2983 


1530 





3802 


1960 





4721 


2430 





5737 


2950 





6853 


3520 




2 


178 


1 769 


1170 


225 


2250 


1480 


296 


2782 


1 850 


360 


3377 


2220 


426 


4030 


2670 




4 


242 


1761 


1 160 


300 


2242 


1475 


390 


2774 


1 835 


469 


3370 


221 5 


555 


4023 


2660 




6 


276 


1753 


1 150 


341 


2235 


1470 


437 


2767 


1 820 


523 


3363 


22 1 


618 


4017 


2650 


8 





() 


3399 


1740 





4333 


2220 





5387 


2750 





6555 


3360 


o 


7838 


4010 




z 


168 


2030 


1340 


212 


2584 


1 700 


278 


3 1 96 


21 10 


336 


3882 


2560 


401 


4634 


3050 




5 


251 


2013 


1330 


311 


2563 


1 685 


398 


3180 


2090 


476 


3863 


2545 


562 


4612 


3040 




8 


289 


2000 


1320: 


354 


2552 


1670 


450 


3163 


2070 


537 


3850 


2530 


630 


4602 


3030 


10 





u 


3 /4z 


1925 


U 


4/bz 


2450 


U 


3S>33 


3050 


U 


~7 C A 

/zM 


3710 


U 


8682 


4450 




2 


1 6 1 


2256 


1480 


202 


2868 


1890 


264 


3556 


2340 


319 


4322 


2840 


378 


5 1 53 


3390 




5 


O A "1 

z43 


zzJo 


1461 


3UU 




1871 


382 


3536 


2318 


43 cS 


43 1 J 1 


2818 


^ A f\ 

340 


5132 


3371 




10 


o n q 
Zyb 


2209 


1430 


364 


28 l 8 


1840 


459 


1 ZL(\ A 


2280 


546 


4zo! s i 


2780 


^ -1 i 
04 1 


5099 


3340 


15 





o 


4423 


' 2270' 





5678 


2900 





7099 


3620 





8665 


4410 





10 393 


5300 




2 


1 A 7 
1 4 / 


07 10 

z / J V 


1770 


1 oz 


^4 A 7 
J4D / 


2260 


z j y 


43U4 


2800 


Zy\) 


jZjZ 


3410 


J 40 


OZ3 1 


4080 




5 


oon 

ZZy 


ZOVO 


1748 


zo3 


1 A A O 

344z 


2235 


j 33 


4z lb 


2777 


A 1 A 

4zo 


jzU4 


3385 


3U 1 


ozzz 


4057 




10 




ZD J 9 


171.2 


340 


7 A AO 


2193 


4jz 


4z.)4 


2739 


j 1 u 


c 1 c n 

J 1 3 y 


3343 


end 
3MV 


A 1 7 s 

01 /3 


4019 




15 


3 1 6 


ZOZJ 


1675 


3hj 


33oj> 


2150 


4 ly 


a i m 
4 1 Vz 


2700 


jd4 


3 113 


3300 


003 


a i on 
1 zv 


3980 


20 


' o 





4948 


2520 


o 


6376 


"3250 





7988 


4060 





9785 


4980 





1 1 753 


6000 




2 


139 


3097 


2000 


175 


3955 


2570 


220 


49 16 


3200 


269 


5983 


3910 


321 


7154 


4700 




5 


219 


3071 


1978 


270 


3926 


2544 


337 


4885 


3174 


403 


5950 


3880 


475 


7119 


4662 




10 


273 


3029 


1940 


334 


3880 


2500 


41 3 


4835 


3130 


'ion 
4o9 


5896 


3830 


573 


7063 


4600 




15 


306 


2988 


1910 


372 


3835 


2465 


459 


4786 


3090 


541 


5844 


3795 


63 1 


7007 


4575 




20 


335 


2948 


1880 


404 


3791 


2430 


495 


4737 


3050 


585 


5792 


3760 


689 


6953 


4550 


30 








5725 


2920 





7420 


3770 





9341 


4750 





1 1 483 


5850 





1 3 848 


7060 




2 


127 


3696 


2380 


159 


4734 


3050 


199 


5900 


3810 


241 


7194 


4650 


285 


86 1 7 


5600 




5 


206 


3666 


2350 


252 


4701 


3020 


312 


5863 


3783 


373 


7155 


4622 


439 


8574 


5552 




10 


259 


3617 


2300 


316 


4647 


2970 


386 


5803 


3739 


456 


7090 


4574 


535 


8505 


5471 




15 


292 


3570 


2250 


354 


4594 


2920 


431 


5744 


3695 


507 


7026 


4527 


590 


8437 


5391 




20 


3 J y 


33z3 


2200 


10/1 

3o4 


434z 


2870 


40 / 


^ ^ OZ 


3650 


D4o 


AClA A 


4480 


a in 
0->V 


Q -• 7A 

oj /U 


5310 




30 


369 


3433 


2130 


440 


4442 


2785 


540 


5574 


3565 


635 


6842 


4375 


739 


8239 


5225 


50 








67 11 


3440 





8774 


4460 





11 129 


""5635 





13 767 


6940 





16 694 


8430 




2 


113 


4554 


2840 


141 


5864 


3670 


171 


7339 


4630 


209 


8980 


5695 


251 


10 788 


6860 




5 


191 


4520 


2813 


234 


5826 


3639 


283 


7295 


4597 


336 


8933 


5654 


394 


10 737 


6818 




10 


243 


4464 


2767 


295 


5763 


3585 


355 


7224 


4542 


419 


8855 


5585 


491 


10 652 


6749 




15 


274 


4409 


2721 


330 


5701 


3534 


396 


7155 


4511 


465 


8779 


5546 


542 


10 570 


6710 




20 


300 


4356 


2675 


361 


5641 


3481 


433 


7086 


4479 


506 


8704 


5506 


586 


10 488 


6670 




30 


347 


4253 


263 1 


412 


5523 


3431 


494 


6953 


4421 


577 


8557 


5444 


672 


10 328 


6603 


1 00 


o 


o 


7914 


4050 





10 485 


5300 





13 454 


6700 




16 817 


8600 





20 578 


10 300 




2 


95 


5834 


3500 


120 


7591 


4600 


138 


9577 


5800 


169 


1 1 803 


7200 


204 


14 264 


8800 




5 


172 


5797 


3475 


208 


7548 


4566 


245 


9528 


5769 


293 


11 748 


7162 


341 


14 204 


8756 




10 


223 


5737 


3434 


268 


7478 


4509 


318 


9447 


5717 


374 


1 1 658 


7100 


436 


14 105 


8683 




15 


252 


5678 


3392 


304 


7409 


4451 


358 


9367 


5665 


418 


1 1 569 


7037 


487 


14 007 


8610 




20 


277 


5619 


3351 


330 


7341 


4394 


387 


9289 


5613 


452 


1 1 482 


6975 


523 


13 910 


8537 




30 


319 


5505 


3267 


378 


7209 


4279 


446 


9136 


5509 


514 


11 310 


6850 


592 


13 720 


8391 




50 


415 


5289 


3100 


486 


6956 


4050 


572 


8841 


5300 


659 


10 979 


6600 


752 


13 354 


8100 



For SI units: I inch - 25.4 mm, 1 foot = 304.8 mm, 1 000 British thermal units per hour = 0.293 kW, 1 square inch = 0.000645 m 2 



102 



2013 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 51 0.1.2(2) 

TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(b)]* 

NUMBER OF APPLIANCES: j SINGLE 

APPLIANCE TYPE: j CATEGORY I 
APPLIANCE VENT CONNECTION: | SINGLE-WALL METAL CONNECTOR 
VENT DIAMETER - D (inch) 
3 4 5 6 7 

APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



HEIGHT 


LATERAL 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


H 

(feet) 


L 

(feet) 


Mire 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 


o 


J o 


77 


45 


^0 


1 ^ 1 
i j i 


85 


OJ 


740 
Z4V 


140 


1 7 A 

1 ZO 


^77 

J / J 


204 


! OJ 


<y7 7 


284 




2 


JV 


S 1 


36 


60 
uu 


Q6 


66 


o J 


1 S6 

1 JU 


104 


1 7^ 

1 ZJ 


^ J 1 


156 


i j / 


J z,U 


213 




4 


INA 


M A 
IN A 


33 


74 

/ 4 


vz 


63 


1 07 
1 uz 


1 J z. 


102 


1 Af> 


7^S 

Z — J 


152 


1 X7 


J I J 


208 




6 


IN A 


MA 
INA 


31 


OJ 


^0 
oV 


60 


1 1 A 
i 1 4 


1 4 / 


99 


1 J 


770 


148 


707 


JU / 


203 







37 


83 


50 


58 


164 


93 


83 


273 


154 


123 


412 


234 


161 


580 


319 




2 


39 


56 


39 


>Q 

?j 


108 


75 


83 


1 76 


119 


1 2 1 


7rS 1 


179 


1 55 


363 


246 




5 


MA 


NA 


37 


11 


1 07 


69 


1 07 
1 \> / 


i uo 


114 


1 S 1 

i j i 


7^7 


171 


1 7J 


352 


235 




8 


NA. 


NA 


33 


90 


95 


64 


122 


1 61 


107 


1 75 


243 


163 


223 


342 


225 


10 





37 


87 


53 


57 


174 


99 


82 


293 


165 


1 20 


444 


254 


158 


628 


344 




2 


.39 


6 1 


41 


39 


1 17 


80 


82 


1 93 


128 


1 1 9 


287 


194 


1 53 


400 


272 




5 


52 


56 


39 


76 


1 1 1 


; 76 


1 05 


1 85 


122 


148 


277 


186 


190 


388 


261 




10 


XT A 

NA 


NA 


34 


97 


1 UU 


68 


1 32 


1 7 1 


112 


1 oo 

188 


261 


171 


237 


369 


241 


15 





JO 


07 


' 57 


JO 


i on 


111 


oU 


jZJ 


1 86 


1 1 


/lOO 
4VV 


283 


1 J J 


7 1 7 
/ 1 J 


388 




2 


JO 


OV 


47 


s7 

J / 


l Jo 


93 


oU 


77 ^ 

ZZJ 


149 


1 J J 


1^7 

JJ / 


224 


1 A Q 
1 45 


All 
4 / j 


: 314; 




5 


C 1 

J 1 


A 7 
OJ 


44 


/ J 


1 7Q 
1 ZO 


86 


1 07 
1 UZ 


7 1 A 
Z I O 


140 


1 44 


77A 
JZO 


217 


1 Q7 

1 oz 


A <;o 

4jy 


298 




10 


KT A 


kl A 
INA 


39 


QS 

VJ 


1 1 A 
1 1 


79 


I ZO 


7f» 1 
ZU 1 


131 


1 Q7 
1 hi 


jU5 


203 


77^ 

ZZ6 


/1 1 Q 
4 jo 


284 




15 


XT A 
JN A 


M A 


NA 


IN A 


XT A 

INA 


72 


I JO 


1 OO 


124 


7 ~)f\ 
LlX) 


7 on 

ZVU 


192 


777 

Z 11 


A 1 Q 
4 I 5 


269 


20 





35 


96 


60 


54 


200 


118 


78 


346 


201 


114 


"""537 


306 


149 


772 


428 




2 


37 


74 


50 


56 


148 


99 


78 


248 


165 


113 


375 


248 


144 


528 


344: 




5 


50 


68 


47 


73 


140 


94 


100 


239 


.158 


141 


363 


239 


178 


514 


334 




10 


NA 


NA 


41 


93 


129 


86 


125 


223 


146 


177 


344 


■ 224 


2.22 


491 


316 




15 


NA 


NA 


NA 


NA 


NA 


80 


155 


208 


136 


216 


325 


210 


264 


469 


301 




20 


NA 


NA 


NA 


NA. 


NA 


NA 


186 


192 


126 


254 


306 


196 


309 


448 


285 


~ 30 


o 


1 A 

34 


V9 


63 


53 


2 1 1 


127 


76 


372 


219 


1 10 


584 


334 


1 A A 

1 44 


849 


472 




2 


1 1 


80 


56 


55 


1 64 


1 1 1 


76 


281 


183 


1 09 




■279; 


1 39 


610 


392 




5 


49 


74 


52 


72 


1 57 


106 


98 


27 1 


173 


1 36 


417 


271 


171 


595 


.382;. 




10 


NA 


NA 


NA 


C\ 1 

91 


144 


98 


122 


255 


168 


171 


397 


257 


213 


570 


367 




15 


NA 


NA 


NA 


115 


131 


NA 


151 


239 


157 


208 


377 


242 


255 


547 


349 




20 


NA 


NA 


NA 


NA 


NA 


NA 


181 


223 


NA 


246 


357 


228 


298 


524 


333 




30 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


389 


477 


305 


50 





33 


99 


66 


51 


213 


133 


73 


394 


230 


105 


629 


361 


138 


928 


5.15 




2 


36 


84 


61 


53 


1.81 


: 121 


73 


318 


205 


104 


495 


3.12 


133 


712 


443 




5 


48 


80 


NA 


70 


174 


117 


94 


308 


198 


131 


482 


305 


164 


696 


. 435 




10 


NA 


NA 


NA 


89 


160 


: NA 


118 


292 


186 


162 


461 


292 


203 


671 


420 




15 


NA 


NA 


NA 


112 


148 


: NA 


145 


275 


174 


199 


441 


280 


244 


646 


405 




20 


NA 


NA 


NA 


NA 


NA 


NA 


176 


257 


NA 


236 


420 


267 


285 


622 


389 




30 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


315 


376 


NA 


373 


573 


NA 


100 





NA 


NA 


NA 


49 


214 


NA 


69 


403 


NA 


100 


659 


395 


131 


991 


555 




2 


NA 


NA 


NA 


51 


192 


NA 


70 


35 1 


NA 


98 


563 


373 


125 


828 


508 




5 


NA 


NA 


NA 


67 


186 


NA 


90 


342 


NA 


125 


551 


366 


156 


813 


501 




10 


NA 


NA 


NA 


85 


175 


NA 


113 


324 


NA 


153 


532 


: 354. 


191 


789 


486 




15 


NA 


NA 


NA 


132 


162 


NA 


138 


310 


NA 


188 


511 


343 


230 


764 


473 




20 


NA 


NA 


NA 


NA 


NA 


NA 


168 


295 


NA 


224 


487 


NA 


270 


739 


458 




30 


NA 


NA 


NA 


NA 


NA 


NA 


231 


264 


NA 


301 


448 


NA 


355 


685 


NA 




50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


540 


584 


NA 



For SI units: I inch = 25.4 mm. 1 foot = 304.8 mm. 1 000 British thermal units per hour - 0.293 k\\ . I square inch - 0.000645 m : 
* NA: Not applicable. 



2013 CALIFORNIA PLUMBING CODE 



103 



WATER HEATERS 



TABLE 510.1.2(2) 

TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(b)] (continued)* 

NUMBER OF APPLIANCES: SINGLE 

APPLIANCE TYPE: CATEGORY ! 
APPLIANCE VENT CONNECTION: SINGLE-WALL METAL CONNECTOR 
VENT DIAMETER - D (inch) 
8 9 10 12 



APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



HEIGHT 
H 


LATERAL 

L 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


(feet) 


(feet) 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 





2 1 1 


695 


369 


267 


894 


469 


371 


1118 


569 


537 


1639 


" 849 




2 


201 


423 


284 


251 


541 


368 


347 


673 


453 


498 


979 


648 




4 


237 


416 


277 


295 


533 


360 


409 


664 


443 


584 


971 


638 




6 


263 


409 


271 


327 


526 


352 


449 


656 


433 


638 


962 


627 


8 





206 


777 


414 


258 


1002 


536 


360 


1257 


658 


521 


1852 


967 




2 


197 


482 


321 


246 


617 


417 


339 


768 


513 


486 


1 120 


743 




5 


245 


470 


3 1 1 


305 


604 


404 


418 


754 


500 


598 


1 104 


730 




8 


280 


458 


300 


344 


591 


392 


470 


740 


486 


665 


1089 


715 


10 





202 


844 


449 


253 


1093 


584 


351 


1373 


718 


507 


2031 


1057 




2 


193 


531 


354 


242 


681 


456 


332 


849 


559 


475 


1242 


848 




5 


241 


518 


344 


299 


667 


443 


409 


834 


544 


584 


1224 


825 




10 


296 


497 


325 


363 


643 


423 


492 


808 


520 


688 


1 194 


788 


15 





195 


966 


523 


244 


1 259 


681 


336 


1591 


838 


488 


2374 


1237 




2 


1 87 


63 1 


413 


232 


812 


543 


319 


1 1 5 


673 


457 


1 49 1 


983 




5 


231 


616 


400 


287 


795 


526 


392 


997 


657 


562 


1469 


963 




10 


284 


592 


381 


349 


768 


501 


470 


966 


628 


664 


1433 


928 




15 


334 


568 


367 


404 


742 


484 


540 


937 


601 


750 


1 399 


894 


20 





190 


1053 


573'" 


238 


1379 


750 


326 


1751 


'927 


473 


2631 


1346 




2 


182 


708 


468 


227 


914 


611 


309 


1146 


754 


443 


1689 


1098 




5 


224 


692 


457 


279 


896 


596 


381 


1126 


734 


547 


1 665 


1074 




10 


277 


666 


437 


339 


866 


570 


457 


1 092 


702 


646 


1 626 


1037 




15 


325 


640 


419 


393 


838 


549 


526 


1 060 


677 


730 


1587 


1005 




20 


374 


6 1 6 


400 


448 


810 


526 


592 


1028 


651 


808 


1550 


973 


30 


o 


184 


1 168 


647 


229 


1542 


852 


312 


1971 


1056 


454 


2996 


""'1545 




2 


175 


823 


533 


219 


1 069 


698 


296 


1 346 


863 


424 


1 999 


1308 




5 


215 


806 


521 


269 


1049 


6*4 


366 


1324 


846 


524 


1971 


1283 




10 


265 


111 


501 


327 


1017 


662 


440 


1287 


821 


620 


1927 


1243 




15 


312 


750 


481 


379 


985 


638 


507 


1251 


794 


702 


1884 


1205 




20 






461 




./ j j 


615 


J / V/ 


1216 


768 


780 


1 84 1 


1166 




30 


461 


670 


426 


541 


895 


574 


704 


1147 


720 


937 


1759 


1101 


50 





176 


1292 


'"' 704 


220 


1724 


948 


295 


2223 


1189 


428 


3432 


1818 




2 


168 


971 


613 


209 


1273 


811 


280 


1615 


1007 


401 


2426 


1509 




5 


204 


953 


602 


257 


1252 


795 


347 


1591 


991 


496 


2396 


1490 




10 


253 


923 


583 


313 


1217 


765 


418 


1551 


963 


589 


2347 


1455 




15 


299 


894 


562 


363 


1.183 


736 


481 


1512 


934 


668 


2299 


1421 




20 


345 


866 


543 


415 


1 150 


708 


544 


1473 


906 


741 


2251 


1387 




30 


442 


809 


502 


521 


1086 


649 


674 


1399 


848 


892 


2159 


1318 


100 





166 


1404 


""765 


207 


1900 


1033 


273 


2479 


1300 


395 


3912 


2042 




2 


158 


1152 


698 


196 


1532 


933 


259 


1970 


1168 


371 


3021 


1817 




5 


194 


1134 


688 


240 


1511 


921 


322 


1945 


1153 


460 


2990 


1 796 




10 


238 


1104 


672 


293 


1477 


902 


389 


1905 


1133 


547 


2938 


1763 




15 


281 


1075 


656 


342 


1443 


884 


447 


1865 


1110 


618 


2888 


1730 




20 


325 


1046 


639 


391 


1410 


864 


507 


1825 


1087 


690 


2838 


1696 




30 


418 


988 


NA 


491 


1343 


824 


631 


1747 


1041 


834 


2739 


1627 




50 


617 


866 


NA 


711 


1205 


NA 


895 


1591 


NA 


1138 


2547 


1489 



For SI units: I inch - 25.4 mm, 1 Cool = 304.8 mm, 1000 British thermal units per hour - 0.293 kW, 1 square inch = 0.000645 m 2 
* NA: Not applicable. 



104 



2013 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 510.1.2(3) 

MASONRY CHIMNEY [NFPA 54: TABLE 13.1(c)]* 



NUMBER OF APPLIANCES: SINGLE 

APPLIANCE TYPE: CATEGORY I 



APPLIANCE VENT CONNECTION: TYPE B DOUBLE-WALL CONNECTOR 



TYPE B DOUBLE-WALL CONNECTOR DIAMETER - D (inch) 
TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM 



APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



HEIGHT 


LATERAL 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


H 

(feet) 


L 

(feet) 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 


2 


NA 


NA 


28 


NA 


NA 


52 


NA 


NA 


86 


NA 


NA 


130 


NA 


NA 


180 




5 


NA 


NA 


25 


NA 


NA 


49 


NA 


NA 


82 


NA 


NA 


117 


NA 


NA 


165 


8 


2 


XT A 
IN A 


M A 

IN A 


29 


N A 


\l A 

INA 


55 


IN A. 


XI A 


93 


IN A 


XI A 
IN A 


145 


XI A 
INA 


M A 
IN A 


198 




5 


IN A 


IN A 


26 


M A 

IN A 


IN A 


52 


INA 


XT A 

XI A 


88 


INA 


INA 


134 


M A 
INA 


KI A 
INA 


183 




8 


NA 


NA 


24 


NA 


NA 


48 


NA 


NA 


83 


NA 


NA 


127 


NA 


NA 


175 


10 


2 


NA 


NA 


31 


NA 


NA 


61 


NA 


NA 


103 


NA 


NA 


162 


NA 


NA 


221 




5 


NA 


NA 


28 


NA 


NA 


57 


NA 


NA 


96 


NA 


NA 


148 


NA 


NA 


204 




10 


NA 


NA 


25 


N A 


NA 


50 


NA 


NA 


87 


NA 


NA 


139 


NA 


NA 


191 


15 




NA 


"na 


35 


NA 


NA 


67 


NA 


NA 


1 14 


NA 


NA 


1 79 


53 


475 


250 




5 


NA 


NA 


35 


NA 


NA 


6? 


NA 


NA 


1 07 


NA 


NA 


1 64 


NA 


NA 


23 1 




10 


NA 


NA 


28 


NA 


NA 


j j 


NA 


NA 


07 

j i 


NA 


NA 


1 53 


NA 


NA 


1 1 6 




15 


NA 


NA 


NA 


NA 


NA 


48 


NA 


NA 


89 


NA 


NA 


141 


NA 


NA 


201 


20 




NA 


NA 


38 


NA 


NA 


74 


NA 


NA 


124 


' NA 


NA 


201 


51 


522 


274 




5 


NA 


NA 


36 


NA 


NA 


68 


NA 


NA 


116 


NA 


NA 


184 


80 


503 


254 




10 


NA 


NA 


NA 


NA 


NA 


60 


NA 


NA 


107 


NA 


NA 


172 


NA 


NA 


237 




15 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


97 


NA 


NA 


159 


NA 


NA 


220 




20 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


83 


NA 


NA 


148 


NA 


NA 


206 


" 30 


2 


NA 


NA 


41 


* NA 


NA 


82 


NA 


NA 


137 


NA 


NA 


216 


47 


581 


303 




5 


NA 


NA 


NA 


NA 


NA 


76 


NA 


NA 


128 


NA 


NA 


198 


75 


561 


281 




10 


NA 


NA 


NA 


NA 


NA 


67 


NA 


NA 


115 


NA 


NA 


184 


NA 


NA 


263 




15 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


107 


NA 


NA 


171 


NA 


NA 


243 




20 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


91 


NA 


NA 


159 


NA 


NA 


227 




30 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


188 


50 


2 


NA 


NA 


' NA 


' NA 


NA 


92 


NA 


NA 


161 


NA 


NA 


251 


NA 


NA 


351 




5 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1 5 1 


NA 


NA 


230 


NA 


NA 


323 




10 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


138 


NA 


NA 


215 


NA 


NA 


304 




15 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


127 


NA 


NA 


199 


NA 


NA 


282 




20 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1 85 


NA 


NA 


264 




30 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 



Minimum 
internal area of 

chimney 
(square inches) 



28 



38 



50 



Maximum 
internal area of 

chimney 
(square inches) 



Seven times the listed appliance categorized vent area, flue collar area, or draft hood outlet areas. 



For SI units: I inch = 25.4 mm, 1 foot = 304.8 mm, 1000 British thermal units per hour = 0.293 kW, 1 square inch = 0.000645 m 2 
* NA: Not applicable. 



2013 CALIFORNIA PLUMBING CODE 



105 



WATER HEATERS 



TABLE 510.1.2(3) 

MASONRY CHIMNEY [NFPA 54: TABLE 13.1(c)] (continued)* 





NUMBER OF APPLIANCES: 


SINGLE 




APPLIANCE TYPE: 


CATEGORY I 




APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE-WALL CONNECTOR 


TYPE B DOUBLE-WALL CONNECTOR DIAMETER - D (inch) 
TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM 


8 


9 


10 12 



APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



HEIGHT 
H 
(feet) 




1 ATFRAL 
L 

(feet) 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 




NA 


NA 


247 


NA 


NA 


320 


NA 


NA 


401 


NA 


NA 


581 ; 




5 


NA 


NA 


231 


NA 


NA 


298 


NA 


NA 


376 


NA 


NA 


561 




2 


NA 


NA 


266 


84 


590 


350 


100 


728' 


446 


139 


1024 


65 1 




5 


NA 


NA 


247 


NA 


NA 


328 


149 


711 


423 


201 


1007 


640 




g 


NA 


NA 


239 


NA 


NA 


31 8 


173 


695 


410 


231 


990 


623 


t U 




68 


519 


ZVo 


82 


655 




98 


810 


4V 1 


136 


1144 


/Z4 




5 


NA 


NA 


277 


124 


638 


365 


146 


791 


466 


196 


1 124 


712 




10 


NA 


NA 


263 


155 


610 


347 


182 


762 


444 


240 


1093 


668 


1 J 


z 


64 


613 


J Jo 


77 


"""779 


A 1 1 

44 J 


92 


968 


JOZ 


127 


1376 


o4 1 




5 


99 


594 




118 


759 


A 1 ^ 

4 J 


139 


946 


j3z> 


186 


1352 


ozo 




1 U 


126 


565 


zVo 


148 


727 


jV4 


173 


912 


DO / 


229 


1315 


nil 

III 




I 5 


NA 


NA 


TO 1 

zs 1 


171 


698 


IIS. 


198 


880 


/t o <r 
45j 


259 


1280 


/4z 


zU 


Z 


c i 
o 1 


f 1 


J / 3 


"71 


bo 1 


AO] 
4V I 


/ 


\ y)b.-> 


DZ / 


1 z 1 


1 j45 






5 


95 


658 


350 


113 


845 


463 


1 33 


1059 


597 


179 


1523 


933 




10 


1.22 




332 


1 A •"» 

14j 


O 1 1 


440 


I o / 


1 AT) 

I Uzz 


566 


zz 1 


\ AO") 

\4bz 


879 




15 


NA 


NA 


314 


165 


780 


418 


191 


987 


541 


251 


1443 


840 




20 


NA 


NA 


296 


186 


750 


397 


214 


955 


513 


277 


1406 


807 


30 


2 


57 


762 


421 


68 


985 


558 


81 


1240 


717 


III 


1 793 


1112 




5 


90 


741 


393 


1 06 


962 


526 


125 


1216 


683 


169 


1 766 


1094 




10 


115 


709 


373 


135 


927 


500 


158 


1176 


648 


210 


1721 


1025 




15 


NA 


NA 


353 


156 


893 


476 


181 


1139 


621 


239 


1 679 ' 


981 




20 


NA 


NA 


332 


176 


860 


450 


203 


1103 


592 


264 


1638 


940 




30 


NA 


NA 


288 


NA 


NA 


416 


249 


1035 


555 


318 


1560 


877 


50 


2 


51 


840 


477 


61 


1106 


633 


72 


1413 


812 


99 


2080 


1243 




5 


83 


819 


445 


98 


1083 


596 


116 


1387 


774 


155 


2052 


1225 




10 


NA 


NA 


424 


126 


1047 


567 


147 


1347 


733 


195 


2006 


1147 




15 


NA 


NA 


400 


146 


1010 


539 


170 


1307 


702 


297 


1961 


1099 




20 


NA 


NA 


376 


165 


977 


511 


190 


1269 


669 


246 


1.916 


1050 




30 


NA 


NA 


327 


NA 


NA 


468 


233 


1 1 96 


623 


295 


1832 


984 


Minimum 


























internal area of 
chimney 




63 






78 






95 






132 





(square inches) j 
Maximum 

internal aiea ol Seven times the listed appliance categorized vent area, flue collar area, or draft hood outlet areas, 

chimney 

(square inches) 

For SI units: 1 inch = 25.4 mm, I foot = 304.8 mm, 1 000 British thermal units per hour = 0.293 kW, 1 square inch = 0.000645 nr 
* NA; Not applicable. 



106 



2013 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 510.1.2(4) 

MASONRY CHIMNEY [NFPA 54: TABLE 13.1 (d)]* 



NUMBER OF APPLIANCES: SINGLE 

APPLIANCE TYPE: CAfEGORY 8 
APPLIANCE VENT CONNECTION: j SINGLE-WALL METAL CONNECTOR 

SINGLE-WALL METAL CONNECTOR DIAMETER - D (inch) 
TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM 

4 5 6 

APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



Minimum 
internal area of 

chimney 
(square inches) 

Maximum 
internal area of 

chimney 
(square inches) 



HEIGHT 


LATERAL 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


H 
(feet) 


L 


Min 


Max 


MdX 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 


2 


NA 


NA 


28 


NA 


NA 




NA 


NA 


86 


NA 


NA 


130 


" NA 


NA 


180 




c 

J 


NA 


NA 




NA 


NA 


4o 


NA 


NA 


o 1 


NA 


NA 


1 J 


NA 


NA 


i i 




2 


IN A 


M A 
iN A 


29 


MA 
IN A 


M A 
IN A 


55 


XI A 
IN A 


XI A 
IN A 


93 


XI A 
IN A 


XI A 
IN A 


145 


XI A 
IN A 


M A 
IN A 


197 




5 


TV A 
IN /-\ 


XT A 
iN /\ 


26 


MA 
IN A 


VIA 

IN A 


51 


XI A 
IN A 


XI A 
IN A 


87 


M A 
IN A 


XI A 
IN A 


133 


Kl A 
IN A 


XI A 
IN A 


182 




8 


NA 


NA 


23 


NA 


NA 


47 


NA 


NA 


82 


NA 


NA 


.1.26 


NA 


NA 


174 


10 


2 


\l A 
IN /A 


Kl A 
IN A 


31 


MA 
IN A 


Ml A 
IN A 


61 


XT A 
IN A 


XI A 
IN A 


102 


XI A 
IN A 


XI A 
IN A 


1.6.1 


XI A 
IN A 


Kl A 
IN A 


220 




5 


XI A 
IN A 


Kl A 
IN A 


28 


NT A 
IN A 


IN A 


56 


XT A 
IN A 


XI A 

IN A 


95 


XI A 
IN A 


XI A 
IN A. 


147 


M A 
IN A 


XI A 
IN A 


203 




10 


M A 
IN A 


IN / V 


24 


M A 
IN A 


XI" A 
IN A 


49 


XI A 
IN A 


XI A 
IN A 


86 


XI A 
IN A 


XI A 
IN A 


137 


M A 
IN A 


Kl A 
IN A 


189 


15 


2 


NA 


NA 


35 


NA 


NA 


67 


NA 


NA 


1 13 


NA 


NA 


178 


166 


473 


249 




5 


NA 


NA 


:: : ;32;':-: 


NA 


NA 


61 


NA 


NA 


106 


NA 


NA 


163 


NA 


NA 


230 




10 


NA 


NA 


27 


NA 


NA 


54 


NA. 


NA 


96 


NA 


NA 


151 


NA 


NA 


214 




15 


NA 


NA 


NA 


NA 


NA 


46 


NA 


NA 


87 


NA 


NA 


138 


NA 


NA 


198 


20 


2 


NA 


NA 


38 


NA 


NA 


73 


NA 


" NA 


123 


NA 


NA 


200 


163 


520 


273 




5 


NA 


NA 




NA 


NA 


67 


NA 


NA 


115 


NA 


NA 


183 


NA 


NA 


252 




10 


NA 


NA 


NA. 


NA 


NA 


59 


NA 


NA 


105 


NA 


NA 


170 


NA 


NA 


235 




15 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


95 


NA 


NA 


156 


NA 


NA 


217 




20 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


80 


NA 


NA 


144 


NA 


NA 


202 


30 


2 


NA 


NA 


41 


NA 


NA 


81 


NA 


NA 


136 


NA 


NA 


215 


158 


578 


302 




5 


NA 


NA 


NA 


NA 


NA 




NA 


NA 


127 


NA 


NA 


196 


NA 


NA 


279 




10 


NA 


NA 


NA 


NA 


NA 


66 


NA 


NA 


113 


NA 


NA 


182 


NA 


NA 


260 




15 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


105 


NA 


NA 


168 


NA 


NA 


240 




20 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


88 


NA 


NA 


1.55 


NA 


NA 


223 




30 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


182 


50 


2 


NA 


NA 


NA 


NA 


NA 


91 


NA 


NA 


160 


NA 


NA 


250 


NA 


NA 


350 




5 


NA 


NA 


■■'na;;; 


NA 


NA 


NA 


NA 


NA 


149 


NA 


NA 


228 


NA 


NA 


321 




10 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1 36 


NA 


NA 


21.2 


NA 


NA 


301 




15 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


124 


NA 


NA 


195 


NA 


NA 


278 




20 


NA 


NA 


NA 


NA 


NA 


NA 


NA. 


NA 


NA 


NA 


NA 


180 


NA 


NA 


258 




30 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 



12 



28 



38 



50 



Seven times the listed appliance categorized vent area, Hue collar area, or draft hood outlet areas. 



For SI units: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1000 British thermal units per hour = 0.293 kW, 1 square inch = 0.000645 nr 
* NA: Not applicable. 



2013 CALIFORNIA PLUMBING CODE 



107 



WATER HEATERS 



TABLE 510.1.2(4) 

MASONRY CHIMNEY [NFPA54: TABLE 13.1(d)] (continued)* 



NUMBER OF APPLIANCES 



APPLIANCE TYPE 



APPLIANCE VENT CONNECTION 



SINGLE 



CATEGORY I 

SINGLE-WALL METAL CONNECTOR 



SINGLE-WALL METAL CONNECTOR DIAMETER - D (inch) 
TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM 



10 



12 



APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



Minimum 
internal area of 

chimney 
(square inches) 

Maximum 
internal area of 

chimney 
(square inches) 



63 



78 



95 



1 32 



Seven times the listed appliance categorized vent area, flue collar area, or draft hood outlet areas. 



For Si units: I inch = 25.4 mm, I foot = 304.8 mm, 1 000 British thermal units per hour = 0.293 kW, 1 square inch = 0.000645 nr 
* NA: Not applicable. 



HEIGHT 
H 


LATERAL 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 




NAT 


{leei) 


L 

/faot\ 

{leei) 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 


2 


NA 


NA' 


247 


NA 


NA 


319 


NA 


NA 


400 


NA | 


NA 


580 






NA 


NA 




NA 


NA 


Zy 1 


NA 


NA 


3 ID 


Nl A ! 

IN A 


XT \ 

IN A 




8 


2 


KJ A 
i n / \ 


NJ A 


265 


Kf A 

IN/A 


NA 

IN /A. 


349 




725 


445 


549 


1021 


650 




5 


Nl A 

IN /A 


NJ A 
IN rA 


246 


NJ A 
IN /A 


Kf A 

IN /A 


327 


N A 

JN/V 


N A 
IN /A 


422 


673 | 


1003 


638 




8 


N A 
IN rA. 


N A 
I N /\ 


237 


NA 
1 N /A 


M A 
IN r\ 


317 


NT A 


M A 

IN. A 


408 


747 


985 


621 


10 


2 


216 


518 


297 


271 


654 


" 387 


373 


808 


490 


536 


1142 


722 




5 


NA 


NA 


276 


334 


635 


364 


459 


789 


465 


657 


1 121 


710 




10 


NA. 


NA 


261 


NA 


NA 


345 


547 


758 


441 


771 ; 


1088 


665 




" 2 


211 


61 1 


335 


264 


776 


440 


362 


965 


560 


520 : 


1 373 


840 




5 


261 


591 


312 


325 


755 


414 


444 


942 


531 


637 : 


1348 


825 




10 


NA 


NA 


294 


392 


722 


392 


531 


907 


504 


749 | 


1309 


774 




15 


NA 


NA 


278 


452 


692 


372 


606 


873 


481 


841 


1272 


738 


20 


2 


206 


675 


374 


258 


864 


490 


252 


1079 


625 


508 : 


1544 


950 




5 


255 


655 


348 


317 


842 


461 


433 


1055 


594 


623 


1518 


930 




10 


312 


622 


330 


382 


806 


437 


517 


1016 


562 


733 1 


1475 


875 




15 


NA 


NA 


311 


442 


773 


414 


591 


979 


539 


823 


1434 


835 




20 


NA 


NA 


292 


NA 


NA 


392 


663 


944 


510 


911 


1394 


800 


30 




200 


759 


420 


249 


982 


556 


340 


1237 


715 


489 


1789 


1110 




5 


245 


737 


391 


306 


958 


524 


417 


1210 


680 


600 


1760 


1090 




10 


300 


703 


370 


370 


920 


496 


500 


1168 


644 


708 


1713 


1020 




15 


NA 


NA 


349 


428 


884 


471 


572 


1128 


615 


798 


1668 


975 




20 


NA 


NA 


327 


NA 


NA 


445 


643 


1089 


585 


883 


1624 


932 




30 


NA 


NA 


281 


NA 


NA 


408 


NA 


NA 


544 


1 055 


1539 


865 


50 


2 


191 


837 


475 


238 


1103 


631 


323 


1408 


810 


463 


2076 


" 1240 




5 


NA 


NA 


442 


293 


1078 


593 


398 


1381 


770 


571 


2044 


1220 




10 


NA 


NA 


420 


355 


1038 


562 


447 


1337 


728 


674 


1994 


1140 




15 


NA 


NA 


395 


NA 


NA 


533 


546 


1294 


695 


761 


1945 


1090 




20 


NA 


NA 


370 


NA 


NA 


504 


616 


1251 


660 


844 


1898 


1040 




30 


NA 


NA 


318 


NA 


NA 


458 


NA 


NA 


610 


1009 


1805 


970 



108 



2013 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 510.1.2(5) 

SINGLE-WALL METAL PIPE OR TYPE B ASBESTOS-CEMENT VENT [NFPA54: TABLE 13.1(e)]* 



NUMBER OF APPLIANCES: SINGLE 

APPLIANCE TYPE: DRAFT HOOD-EQUIPPED 
APPLIANCE VENT CONNECTION: CONNECTED DIRECTLY TO PIPE OR VENT 







3 


4 


HEIGHT 


- . 

LATERAL 






H 


i 










(feet) 


(feet) 






6 





39 


70 




2 


31 


55 




5 


28 


51 




o " 


42 






2 


32 


61 




5 


29 


56 




10 


24 


49 


1 


o 


dS 


Rd 




2 


35 


67 




5 


32 


61 




10 


27 


54 




15 


NA 


46 


is 


i7 


*+ j 


Q 1 




2 


'U) 

J V 


11 

1 z 




j 


j j 


u / 




10 


30 


58 




15 


NA 


50 




20 


NA 


NA 







jj 






i 
z 


HZ 


on 
ou 




j 


J 


Id 




1 u 


J z 


OJ 




1 J 


K( A 
JN A 


c r 

JJ 




20 


NA 


NA 




o 


56 


108 




2 


44 


84 




5 


NA 


78 




10 


NA 


68 




15 


NA 


NA 




20 


NA 


NA 




30 


NA 


NA 


50 






120 




2 


NA 


95 




5 


NA 


NA 




10 


NA 


NA 




15 


NA 


NA 




20 


NA 


NA 




30 


NA 


NA 



DIAMETER - D (inch) 
TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM 

5 I 6 7 8 10 

APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



MAXIMUM APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



12 



1 16 


170 


232 


312 


500 


750 


94 


141 


194 


260 


415 


620 


88 


128 


177 


242 


390 


600 


126 ~ 


185 


" 252 


340 


542 


815 


102 


154 


210 | 


284 


451 


680 


95 


141 


194 


264 


430 


648 


86 


131 


180 


250 


406 


625 


138 


""202 


279 r 


372 


606 


912 


111 


168 


233 


311 


505 


760 


104 


153 


215 


289 


480 


724 


94 


143 


200 


274 


455 


700 


84 


130 


186 


258 


432 


666 


151" 


223 


312 


420 


684 


1040 


122 


186 


260 


350 


570 


865 


110 


170 


240 


325 


540 


825 


103 


158 


223 


308 


514 


795 


93 


144 


207 


291 


488 


760 


82 


132 


195 


273 


466 


726 


~ 163 


^" 252 


~ 342 


470 


770 


1190 


136 


210 


286 


392 


641 


990 


123 


192 


264 


364 


610 


945 


115 


178 


246 


345 


571 


910 


104 


163 


228 ! 


326 


550 


870 


91 


149 


214 


306 


525 


832 


183 


276 


384 


529 


878 


1370 


148 


230 


320 


441 


730 


1140 


137 


210 


296 ! 


410 


694 


1080 


125 


196 


274 | 


388 


656 


1050 


113 


177 


258 


366 


625 


1000 


99 


163 


240 


344 


596 


960 


NA 


NA 


192 


295 


540 


890 


210 


310 


443 


590 


980 


1550 


171 


260 


370 


492 


820 


1290 


159 


234 


342 


474 


780 


1230 


146 


221 


318 | 


456 


730 


1190 


NA 


200 


292 


407 


705 


1130 


NA 


185 


276 


384 


670 


1080 


NA 


NA 


222 


330 


605 


1010 



For SI units: I inch = 25.4 mm, 1 foot = 
* NA: Not. applicable. 



304.8 mm, 1000 British thermal units per hour = 0.293 kW, 1 square inch - 0.000645 m 2 



2013 CALIFORNIA PLUMBING CODE 



109 



WATER HEATERS 



TABLE 510.1.2(6) 

EXTERIOR MASONRY CHIMNEY [NFPA 54-12: TABLE 13.1(f)] 1 - 2 

! NUMBER OF APPLIANCES: SINGLE 

APPLIANCE TYPE: NAT 
APPLIANCE VENT CONNECTION: TYPE B DOUBLE-WALL CONNECTOR 
! MINIMUM ALLOWABLE INPUT RATING OF SPACE-HEATING APPLIANCE IN THOUSANDS OF BTU PER HOUR 



VENT HEIGHT 1 INTERNAL AREA OF CHIMNEY (square inches) 



(feet) 


12 


19 


28 


38 


50 


63 


78 


113 




Local 99% winter design temperature: 37°F or greater 






















o 





8 














° 











10 


























15 


NA 























20 


NA 


NA 


123 


190 


249 


184 








30 


NA 


NA 


NA 


NA 


NA 


393 


334 





50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


579 








Local 99% winter design temperature: 27° F to 36°F 








o ' 


o 


68 


116 


156 


180 


212 


266 


8 








! 82 


127 


167 


187 


214 


263 


10 





51 


\ 91 


141 


183 


201 


225 


265 


15 


NA 


NA 


\ NA 


NA 


233 


253 


274 


305 


20 


NA 


NA 


NA 


NA 


NA 


307 


330 


362 


30 


NA 


NA 


NA 


NA 


NA 


419 


445 


485 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


763 




Local 99% winter design temperature: 17°F to 26°F 


6 


NA 


NA 


NA 


NA 


NA 


215 


259 


349 


8 


NA 


NA 


NA 


NA 


197 


226 


264 


352 


10 


NA 


NA 


NA 


NA 


214 


245 


278 


358 


15 


NA 


NA 


| NA 


NA 


NA 


296 


331 


398 


20 


NA 


NA 


NA 


NA 


NA 


352 


387 


457 


30 


NA 


NA 


NA 


NA 


NA 


NA 


507 


581 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 








Local 99°/ 


y o winter design temperature: 5°F to 16°F 






6 


NA 


NA 


! NA 


NA 


NA 


NA 


NA 


416 


8 


NA 


NA 


NA 


NA 


NA 


NA 


312 


423 


10 


NA 


NA 


NA 


NA 


NA 


289 


331 


430 


15 


NA 


NA 


1 NA 


NA 


NA 


NA. 


393 


485 


20 


NA 


NA 


NA 


NA 


NA 


NA 


450 


547 


30 


NA 


NA 


I NA 


NA 


NA 


NA 


NA 


682 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


972 








Local 99% winter design temperature: -1 


0°F to 4°F 






6 


NA 


NA 


! NA 


NA 


NA 


NA 


NA 


484 


8 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


494 


10 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


513 


15 


NA 


NA 


| NA 


NA 


NA 


NA 


NA 


586 


20 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


650 


30 


NA 


NA 


! NA 


NA 


NA 


NA 


NA 


805 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1003 



Local 99% winter design temperature: - 1 1 °F or lower 
Not recommended for any vent configurations 



For SI units: 1 inch = 25.4 mm, I foot = 304.8 mm, J 000 British thermal units per hour = 0.293 kW, 1 square inch = 0.000645 m 2 , °C = (°F-32)/L8 
Notes: 

1 See Figure 510.1 .2(6) for a map showing local 99 percent winter design temperatures in the United States. 

2 NA: Not applicable. 



110 



2013 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 510.2(1) 

TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(a)]* 



NUMBER OF APPLIANCES: TWO OR MORE 



APPLIANCE TYPE: CATEGORY I 
APPLIANCE VENT CONNECTION: TYPE B DOUBLE-WALL CONNECTOR 



VENT CONNECTOR CAPACITY 
TYPE B DOUBLE-WALL VENT AND CONNECTOR DIAMETER - D (inch) 

4 5 6 

APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 



COMMON VENT CAPACITY 
TYPE B DOUBLE-WALL COMMON VENT DIAMETER - D (Inch) 

5 l 6 



COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



VENT 
HEIGHT 
H 

(feet) 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


6 


92 


81 


65 


140 


116 


103 


204 


161 


147 


309 


248 


"200 


8 


101 


90 


73 


155 


129 


114 


224 


178 


163 


339 


275 


223 


10 


110 


97 


79 


169 


141 


124 


243 


194 


178 


367 


299 


242 


15 


125 


112 


91 


195 


164 


144 


283 


228 


206 


427 


352 


280 


20 


136 


123 


102 


215 


183 


160 


314 


255 


229 


475 


394 


310 


30 


152 


138 


118 


244 


210 


185 


361 


297 


266 


547 


459 


360 


50 


167 


153 


134 


279 


244 


214 


421 


353 


310 


641 


547 


423 


100 


175 


163 


NA 


311 


277 


NA 


489 


421 


NA 


751 


658 


479 



For SI units: 1 inch = 25.4 mm, 
* NA: Not applicable. 



foot = 304.8 mm, 1000 British thermal units per hour = 0.293 kW, 1 square inch - 0.000645 m 2 



VENT 
HEIGHT 
H 

(feet) 


CONNECTOR 
RISE 
R 

(feet) 


FAN NAT FAN NAT 


FAN NAT 


FAN NAT 


FAN NAT 


Min Max Max Min 


Max Max 


Min Max Max 


Min Max Max 


Min Max Max 


6 


1 

2 
3 


22 
23 
24 


37 ; 26 
41 31 
44 35 


35 

J 1 

38 


66 ~46 
75 55 
81 62 


46 
48 
49 


106 72 
121 86 
132 96 


58 
60 
62 


164 104 
183 124 
199 139 


77 225 142 
79 253 168 
82 275 189 


8 ~ 


1 

2 
3 


22 
23 
24 


40 27 
44 32 

47 36 


" 35 
36 
37 


72 48 
80 57 
87 64 




49 

51 

53 


114 76 
1 28 90 
139 101 


64 
66 
67 


176 109 I 84 243 148 
195 129 86 269 175 
210 145 88 290 198 


10 


1 

2 
3 


22 
23 
24 


43 28 

47 33 
50 37 


34 
36 
37 


78 " 50 
86 59 
92 67 


49 
51 

52 


123 78 
136 93 
146 104 


65 
67 
69 


189 113 

206 134 
220 150 


89 257 154 
91 282 182 
94 303 205 


15 


1 

2 
3 


21 

22 
24 


50 30 
53 35 
55 40 


33 
35 
36 


89 53 
96 63 
102 71 


47 
49 
51 


142 83 
153 99 
163 111 


64 
66 
68 


220 120 
235 142 
248 160 


88 298 163 
91 320 193 
93 339 218 


20 


1 

2 
3 


21 

22 
23 


54 31 
57 37 
60 42 


33 
34 
35 


99 56 
1 05 66 
110 74 


46 
48 
50 


157 87 
167 104 
176 116 


62 
64 
66 


246 125 
259 149 
271 168 


86 334 171 
89 354 202 
91 371 228 


30 


1 

2 
3 


20 
21 

22 


62 33 
64 39 
66 44 


31 
33 
34 


I 1 3 59 

I I 8 70 
123 79 


45 
47 
48 


181 93 
190 110 
198 124 


60 
62 
64 


288 134"" 
299 158 
309 178 


83 
85 

88 


391 182 
408 215 
423 242 


50 


1 
2 
3 


19 71 36 

21 73 43 

22 75 ^ 48 


30 
32 
33 


~ 133 64 
137 76 
141 86 


43 216 101 

45 223 119 

46 229 134 


57 ' 349 145 
59 358 172 
61 366 194 


78 
81 
83 


477 197 
490 234 
502 263 


100 


1 

2 
3 


18 82 : 37 

19 83 44 

20 84 50 


28 158 66 

30 161 79 

31 163 89 


40 ' 262 104 
42 267 123 
44 272 138 


53 : 442 150 
55 447 178 
57 452 200 


73 
75 
78 


611 204 
619 242 
627 272 



2013 CALIFORNIA PLUMBING CODE 



111 



WATER HEATERS 



TABLE 510.2(1) 

TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(a)] (continued) 



NUMBER OF APPLIANCES: TWO OR MORE 
APPLIANCE TYPE: CATEGORY I 
APPLIANCE VENT CONNECTION: TYPE B DOUBLE-WALL CONNECTOR 
VENT CONNECTOR CAPACITY 



TYPE B DOUBLE-WALL VENT AND CONNECTOR DIAMETER - D (inch) 

8 i 9 10 

APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 



VENT 


CONNECTOR 

□ ice 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


H 

(feet) 


R 

(feet) 


Min 


Max 


Max 


Min 


Max 




Min 


Max 


Max 


' 6 


1 


92 


296 


185 


109 


376""" 


237 


128 


466 


289 




2 


95 


333 


220 


1 12 


424 


2S2 


131 


526 


345 




3 


97 


363 


248 


114 


463 


317 


134 


575 


386 


8 




100 


320 


! 94 


118 


408 


248 ~ 


138 


507 


303 




2 


103 


356 


230 


121 


454 


294 


141 


564 


358 




3 


105 


384 




123 


492 


j3u 


143 


612 


4()z 


i() 


1 


106 


341 


200 


125 


""436 


257 


146 


542 


"314 




2 


109 


374 


238 


128 


479 


305 


149 


596 


372 




3 


11 1 


402 


268 


131 


515 


342 


152 


642 


417 




1 


110 


389 


214 


134 


493 


273 


162 


609 


333 




2 


1 12 


419 


253 


137 


532 


323 


165 


658 


394 




3 


115 


445 


286 


140 


565 


365 


167 


700 


444 


20 


1 


107 


436 


224' 


131 


552 


285 


158 


681 


347 




2 


110 


463 


265 


134 


587 


339 


161 


725 


414 




3 


113 


486 


300 


137 


618 


383 


164 


764 


466 




1 


103 


512 


238 


125 


649 


305 


151 


802 


372 




2 


1 05 


535 


282 


129 


679 


360 


155 


840 


439 




3 


108 


555 


317 


132 


706 


405 


158 


874 


494 


50 


1 


97 


627 


257" 


120 


797 


330 


144 


984 


"403 




2 


100 


645 


306 


123 


820 


392 


148 


1014 


478 




3 


103 


661 


343 


126 


842 


441 


151 


1043 


538 


100 




91 


810 


266 


112 


1 038 


341 


135 


1285 


417 




2 


94 


822 


316 


115 


1 054 


405 


139 


1 306 


494 




3 


97 


834 


355 


118 


1069 


455 


142 


1327 


555 



COMMON VENT CAPACITY 
TYPE B DOUBLE-WALL COMMON VENT DIAMETER - DOnchf 
8 9 10 

COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



VENT 
HEIGHT 
H 

(feet) 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


6 


404 


314 


260 


547 


434 


335 


672 


520 


410 


8 


444 


348 


290 


602 


480 


378 


740 


577 


465 


10 


477 


377 


315 


649 


522 


405 


800 


627 


495 


15 


556 


444 


365 


753 


612 


465 


924 


733 


565 


20 


621 


499 


405 


842 


688 


523 


1035 


826 


640 


30 


720 


585 


470 


979 


808 


605 


1209 


975 


740 


50 


854 


706 


550 


1164 


977 


705 


1451 


1 1 88 


860 


100 


1025 


873 


625 


1408 


1215 


800 


1784 


1 502 


975 



For SI units: I inch = 25.4 mm, 1 foot = 304.8 mm. 1000 British thermal units per hour - 0.293 kW, 1 square inch - 0.000645 m 2 



112 



2013 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 510.2(1) 

TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(a)] (continued)* 


NUMBER OF APPLIANCES: 


TWO OR MORE 


APPLIANCE TYPE: 


CATEGORY I 


APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE-WALL CONNECTOR 



VENT CONNECTOR CAPACITY 
TYPE B DOUBLE-WALL VENT AND CONNECTOR DIAMETER - D (inch) 
12 14 16 I 18 



APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 



VENT 
HEIGHT 


CONNECTOR 
RISE 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


H 

(feet) 


R 

(feet) 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 


"2 

A 

4 

6 


174 
180 
NA 


764 
897 
NA 


496 
olo 
NA 


223 
230 
NA 


1046 
1231 
NA 


653 

OZ / 

NA 


281 

287 

NA. 


1371 
1617 
NA 


.853 

t no 1 
I U(S I 

NA 


346 
352 
NA 


1772 
2069 
NA 


1080 

1 3 l\) 

NA 


8 


4 
6 


186 
192 


822 
952 
1050 


516 

/ A A 

644 

772 


238 
244 
252 


1 126 
1307 
1445 


696 
884 
1072 


298 
305 
313 


1478 
1719 
1902 


910 
J I MJ 
1390 


365 
372 
380 


1920 
221 1 
2434 


1150 

1 A £ C\ 

1 4oU 
1770 


1 


A 

6 


1% 
201 
207 


870 
997 
1095 


536 

792 


249 
256 
263 


1195 
1371 
1509 


730 
1118 


311 

318 
325 


1570 
1804 
1 989 


955 
1455 


379 
387 
395 


2049 
2332 
2556 


1205 
1 SIS 

1 J J J 

1865 




2 " 

4 

6 


214 
221 

228 


967 
1085 
1181 


568 
712 
856 


272 
279 
286 


1334 
1499 
1632 


790 
1006 
1222 


336 
344 
351 


1 760 
1978 
2157 


1030 
1320 
1610 


408 
416 
424 


2317 
2579 
2796 


1305 
1665 
2025 


20 


2 
4 
6 


223 
230 
237 


1051 
1162 
1253 


596 
748 
900 


291 

298 
307 


1443 
1597 
1726 


84~(T~ 

1064 

1288 


357 
365 
373 


1911 
2116 

2287 


1095 
1395 
1695 


430 
438 
450 


2533 
2778 
2984 


"1385 
1765 
2145 


30 


2 
4 

6 


216 
223 
231 


1217 
1316 
1400 


632 

792 
952 


286 
294 
303 


1664 
1802 
1920 


910 
1160 
1410 


367 
376 
384 


2183 
2366 
2524 


1190 
1510 

1830 


461 
474 

485 


2891 
3110 

3299 


1540 
1920 
2340 


50 


2 
4 
6 


206 "~ 

213 

221 


1479 
1561 
1631 


689 
860 
1031 


"273" 
281 
290 


2023 
2139 
2242 


1007 
1291 
1575 


" 350 
359 
369 


2659 
2814 
2951 


1315 
1685 
2055 


435 
447 
461 


3548 
3730 
3893 


1665 
2135 
2605 


100 


2 
4 
6 


192 
200 

208 


1923 
1 984 
2035 


712 
888 
1064 


254 
263 
272 


2644 
2731 
2811 


1050 
1346 
1642 


326 
336 
346 


3490 
3606 
3714 


1370 
1760 
2150 


402 
414 

426 


4707 
4842 
4968 


1740 

2220 
2700 



COMMON VENT CAPACITY 
TYPE B DOUBLE-WALL COMMON VENT DIAMETER - D (inch) 
12 14 16 18 



COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



VENT 
HEIGHT 
H 

(feet) 


FAN 
+FAN 


FAN 
+NAT 


NAT 

+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


6 


900 


696 


588 


1284 


990 


" 815 


1735 


1336 


1065 


2253 


1732 


1345 


8 


994 


773 


652 


1423 


1103 


912 


1927 


1491 


1190 


2507 


1936 


1510 


10 


1 076 


841 


712 


1542 


1200 


995 


2093 


1 625 


1300 


2727 


2113 


1645 


15 


1247 


986 


825 


1794 


1410 


1158 


2440 


1910 


1510 


3 1 84 


2484 


1910 


20 


1405 


1 116 


916 


2006 


1588 


1290 


2722 


2147 


1 690 


3561 


2798 


2140 


30 


1658 


1327 


1025 


2373 


1892 


1525 


3220 


2558 


1990 


4197 


3326 


2520 


50 


2024 


1640 


1280 


291 1 


2347 


1 863 


3964 


3183 


2430 


5184 


4149 


3075 


100 


2569 


2131 


1670 


3732 


3076 


2450 


5125 


4202 


3200 


6749 


5509 


4050 



For SI units: 1 inch = 25.4 mm, 1 foot = 304.8 mm. 1000 British thermal units per hour ^ 0.293 kVV, 1 square inch = 0.000645 nr 
* NA: Not applicable. 



2013 CALIFORNIA PLUMBING CODE 



113 



WATER HEATERS 



TABLE 510.2(1) 

TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(a)] (continued)* 

NUMBER OF APPLIANCES: TWO OR MORE 
APPLIANCE TYPE: CATEGORY S 
APPLIANCE VENT CONNECTION: TYPE B DOUBLE-WALL CONNECTOR 
VENT CONNECTOR CAPACITY 



TYPE B DOUBLE-WALL VENT AND CONNECTOR DIAMETER - D (inch) 
20 22 24 

APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 



20 



COMMON VENT CAPACITY 
TYPE B DOUBLE-WALL COMMON VENT DIAMETER - D (inch) 
22 

COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



24 



For SI units: I inch = 25.4 mm, I foot = 
* NA: Not applicable. 



304.8 mm, J 000 British thermal units per hour = 0.293 kW, I square inch - 0.000645 m 2 



VENT 
HEIGHT 


CONNECTOR 
RISE 




FAN 


NAT 




FAN 


NAT 


FAN 


NAT 


H 
(feet) 


R 
(feet) 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 


2 


NA 


NA 


NA 


NA 


NA 


NA 


M A 

1 N /- \ 


K A 

IN i\ 


NA 




4 


NA 


NA 


NA 


NA 


NA 


NA 


K' A 
In A 


V A 
IN A 


NA 




6 


NA 


NA 


NA 


NA 


NA 


NA 


M A 
IN A 


IN A 


NA 




2 


NA 


NA 


NA 


NA 


NA 


NA 


MA 

1 N 1\ 


M A 
IN /\ 


NA 




4 


471 


2737 


1800 


560 


3319 


2180 


OOZ 


"iQv7 


2590 




6 


478 


3018 


2180 


568 


3665 


2640 




HO / J 


3130 


10 


2 


NA 


NA 


"na 


NA 


NA 


NA 


M A 
IN A 


\1 A 
IN A 


NA 




4 


486 


2887 


1890 


581 


3502 


2280 


686 


4175 


2710 




6 


494 


3 1 69 


2290 


589 


3849 


2760 


694 


4593 


3270 


IS 


2 


NA 


NA 


NA 


NA 


' NA 


' NA 


NA 


NA 


NA 




4 


523 


3197 


2060 


624 


3881 


2490 


734 


463 1 


2960 




6 


533 


3470 


2510 


634 


4216 


3030 


743 


5035 


3600 


20 


2 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 




4 


554 


3447 


2180 


661 


4190 


2630 


772 


5005 


3130 




6 


567 


3708 


2650 


67] 


4511 


3190 


785 


5392 


3790 


30 


? 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 




4 


619 


3840 


2365 


728 


4861 


2860 


847 


5606 


3410 




6 


632 


4080 


2875 


741 


4976 


3480 


860 


5961 


4150 




2 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 




4 


580 


4601 


2633 


709 


5569 


3 1 85 


851 


6633 


3790 




6 


594 


4808 


3208 


724 


5826 


3885 


867 


6943 


4620 


1 00 


2 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 




4 


523 


5982 


2750 


639 


7254 


3330 


769 


8650 


3950 




6 


539 


6143 


3350 


654 


7453 


4070 


786 


8892 


4810 



VENT 




















HEIGHT 


FAN 


FAN 


NAT 


FAN 


FAN 


NAT 


FAN 


FAN 


NAT 


H 
(feet) 


+FAN 


+NAT 


+NAT 


+FAN 


+NAT 


+NAT 


+FAN 


+NAT 


+NAT 




2838 


2180 


1660 


3488 


2677 


1970 


4206 


3226 


2390 


8 


3162 


2439 


1860 


3890 


2998 


2200 


4695 


3616 


2680 


10 


3444 


2665 


2030 


4241 


3278 


2400 


5123 


3957 


2920 


15 


4026 


3133 


2360 


4971 


3862 


2790 


6016 


4670 


3400 


20 


4548 


3552 


2640 


5573 


4352 


3120 


6749 


5261 


3800 


30 


5303 


4193 


3110 


6539 


5157 


3680 


7940 


6247 


4480 


50 


6567 


5240 


3800 


8116 


6458 


4500 


9837 


7813 


5475 


100 


8597 


6986 


5000 


10 681 


8648 


5920 


13 004 


1 499 


7200 



114 



2013 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 510.2(2) 

TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(b)]* 

I" NUMBER OF APPLIANCES: TWO OR MORE 

APPLIANCE TYPE: ! CATEGORY I 
APPLIANCE VENT CONNECTION: I SINGLE-WALL METAL CONNECTOR 
VENT CONNECTOR CAPACITY 
SINGLE-WALL METAL VENT CONNECTOR DIAMETER - D (inch) 
3 4 ; 5 6 7 

APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 



VENT 
HEIGHT 


CONNECTOR 
RISE 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


H 

(feet) 


R 

(feet) 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 


1 


NA 


NA ; 


26 


" NA 


NA 


46 


NA 


NA 


71 


NA 


NA 


102 


207 


223 


140 




2 


NA 


NA 


31 


NA 


NA 


55 


NA 


NA 


85 


168 


182 


123 


215 


251 


167 




3 


NA 


NA 


34 


NA 


NA 


62 


121 


13 1 


95 


1 75 


1 98 


138 


222 


273 


188 


8 


r ~ 


NA 


NA 


27 


NA 


NA 


48 


r NA 


NA 


75' 


NA 


NA 


106 


226 


240 


145 




2 


NA 


NA 


32 


NA 


NA 


57 


125 


126 


89 


184 


193 


127 


234 


266 


173 




3 


NA 


NA 


35 


NA 


N A 


64 


1 30 


1 38 


100 


1 9 1 


208 


144 


241 


287 


197 


10 


1 


NA 


NA 


28 


NA 


NA 


50 


119 


121 


77 


182 


186 


1 10 


240 


253 


150 




2 


NA 


NA 


33 


84 


85 


59 


124 


134 


91 


189 


203 


132 


248 


278 


183 




3 


NA 


NA 


36 


89 


91 


67 


129 


144 


102 


197 


217 


148 


257 


299 


203 


15 


1 


NA 


NA " 


29 


79 


87 


52 


116 


138 


81 


177 


214 


116 


238 


29 1 


158 




2 


NA 


NA 


34 


83 


94 


62 


121 


150 


97 


185 


230 


138 


246 


314 


189 




3 


NA 


NA 


39 


87 


100 


70 


127 


160 


109 


193 


243 


157 


255 


J j J 


215 


20 


1 


49 


56 


30 




97 


54 


115 


152 


84 


175 


238 


120 


233 


325 


165 




2 


52 


59 


36 


82 


103 


64 


120 


163 


101 


182 


252 


144 


243 


346 


197 




3 


55 


62 


40 


87 


107 


72 


125 


172 


1 13 


190 


264 


164 


252 


363 


223 


30 




~T7 


60 


31 " 


" 77 


1 10 


57 


112 


175 


89 


169 


278 


129 


226 


380 


175 




2 


51 


62 


37 


81 


115 


67 


117 


185 


106 


177 


290 


152 


236 


397 


208 




3 


54 


64 


42 


85 


119 


76 


122 


193 


120 


185 


300 


.172 


244 


412 


235 


50 


1 ' 


46 


69 


34 


75 


128 


60 


109 


207 


96 


1 62 


336 


137 


217 


460 


188 v 




2 


49 


71 


40 


79 


132 


72 


114 


215 


113 


170 


345 


164 


226 


473 


■223;:; 




3 


52 


72 


45 


83 


136 


82 


119 


221 


123 


178 


353 


186 


235 


486 


252 


100 


" 1 


" 45 " 


79 


34 


71 


150 


61 


' 104 


249 


98 


153 


424 


140 


205 


585 


192 




2 


48 


80 


41 


75 


153 


73 


110 


255 


115 


160 


428 


167 


212 


593 


228 




3 


51 


81 


46 


79 


157 


85 


114 


260 


129 


168 


433 


190 


222 


603 


256 



COMMON VENT CAPACITY 
TYPE B DOUBLE-WALL COMMON VENT DIAMETER - D (inch) 
4 i 5 6 7 

COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



VENT 
HEIGHT 
H 
(feet) 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


6 


NA 


78 


64 


NA 


113 


99 


200 


1 58 


144 


304 


244 


196 


8 


NA 


87 


71 


NA 


126 


111 


218 


173 


159 


331 


269 


218 


10 


NA 


94 


76 


163 


137 


120 


237 


189 


174 


357 


292 


236 


15 


121 


108 


88 


189 


159 


140 


275 


221 


200 


416 


343 


274 


20 


131 


118 


98 


208 


177 


156 


305 


247 


223 


463 


383 


302 


30 


145 


132 


113 


236 


202 


180 


350 


286 


257 


533 


446 


349 


50 


159 


145 


128 


268 


233 


208 


406 


337 


296 


622 


529 


410 


100 


166 


153 


NA 


297 


263 


NA 


469 


398 


NA 


726 


633 


464 



For SI units: I inch = 25.4 mm, 1 foot = 304.8 mm, 1000 British thermal units per hour = 0.293 kW. 1 square inch - 0.000645 nr 
* NA: Not applicable. 



2013 CALIFORNIA PLUMBING CODE 



115 



WATER HEATERS 






TABLE 510.2(2) 

TYrc B UOUBLt-WALL VEN 1 [NrrA b4: lAoLb 1 o.2(D)J (Continued) 






NUMBER OF APPLIANCES: 


TWO OR MORE 


APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


SINGLE-WALL METAL CONNECTOR 



VENT CONNECTOR CAPACITY 



SINGLE-WALL METAL VENT CONNECTOR DIAMETER - D (inch) 
8 9 10 



APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 



VENT 
HEIGHT 


CONNECTOR 
RISE 


FAN 


NAT 




FAN 


NAT 


FAN 


- 

NAT 


f-j 

(feet) 


R 

(feet) 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 


r 


Z()Z 


zyj 


183 




325 


3 / j 


234 


44 / 


4 0.5 


286 




2 


Z / 1 


1 


219 




334 


4zz 


281 


-1 c o 


C ") A 


344 




3 


O "70 

z /y 


JO 1 


247 




344 


4oz 


316 


468 


C7 A 
3 /4 


385 




1 


285 


316 


191 




352 


403 


244 


48 1 


502 


""299 




2 


293 


353 


228 




360 


450 


292 


492 


560 


355 




3 


302 


381 


256 




370 


489 


328 


501 


609 


400 


10 


1 


302 


335 


196 




372 


429 


252 


506 


534 


"""308 




2 


31 1 


369 


235 




381 


473 


302 


517 


589 


368 




3 


320 


398 


265 




391 


511 


339 


528 


637 


413 


1 5 


1 


312 


380 


208 




397 


482 


266 


556 


596 


324 




2 


321 


411 


248 




407 


522 


317 


568 


646 


3$? 




3 


331 


438 


281 




418 


557 


360 


579 


690 


437 


20 


1 ~ 


306 


425 


217 ' 




390 


538 


276 


546 


664 


336 




2 


3.1.7 


453 


259 




400 


574 


331 


558 


709 


403 




3 


326 


476 


294 




412 


607 


375 


570 


750 


457 


30 


1 


296 


497 


~ 230 




378"" 


630 


294 


""528 


779" 


358 




2 


307 


521 


274 




389 


662 


349 


541 


819 


425 




3 


316 


542 


309 




400 


690 


394 


555 


855 


482 


~ 50 




284""""" 


604 


245 




364 


768 


314 


507 


951 


384 




2 


294 


623 


293 




376 


793 


375 


520 


983 


458 






304 


640 


331 




387 


816 


423 


535 


1013 


518 


1 00 




269" 


774 


249 




345 


993 


321 


476 


1236 


""393" 




2 


279 


788 


299 




358 


1011 


3 S3 


490 


1259 


469 




3 


289 


801 


339 




368 


1027 




431 


506 


1280 


527 



COMMON VENT CAPACITY 
TYPE B DOUBLE-WALL COMMON VENT DIAMETER - D (inch) 
8 9 10 

COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



VENT 





















HEIGHT 


FAN 


FAN 


NAT 


FAN 


FAN 


NAT 


FAN 


FAN 


NAT 




+FAN 


+NAT 


+NAT 


+FAN 


+NAT 


+NAT 


+FAN 


+NAT 


+NAT 


(feet) 




















6 


398 


310 


257 


541 


429 


332 


665 


515 


407 


8 


436 


342 


285 


592 


473 


373 


730 


569 


460 


10 


467 


369 


309 


638 


512 


398 


787 


617 


487 


15 


544 


434 


357 


738 


599 


456 


905 


718 


553 


20 


606 


487 


395 


824 


673 


512 


1013 


808 


626 


30 


703 


570 


459 


958 


790 


593 


1183 


952 


723 


50 


833 


686 


535 


1139 


954 


689 


1418 


1 1 57 


838 


100 


999 


846 


606 


1378 


1185 


780 


1741 


1459 


948 



For SI units: 1 inch = 25.4 mm, I foot = 304.8 ram, 1 000 British thermal units per hour = 0.293 kW, 1 square inch = 0.000645 m 2 



116 



2013 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 510.2(3) 

MASONRY CHIMNEY [NFPA 54: TABLE 13.2(c)]* 



NUMBER OF APPLIANCES: 


TWO OR MORE 


APPLIANCE TYPE: 


CATEGORY I 


APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE-WALL CONNECTOR 



VENT CONNECTOR CAPACITY 



TYPE B DOUBLE-WALL VENT CONNECTOR DIAMETER - D (inch) 



3 4 5 6 7 

APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 



VENT 
HEIGHT 


CONNECTOR 
RISE 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 




FAN 


NAT 


FAN 


NAT 


H 

(feet) 


R 

(feet) 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 


r 


24 


33 


21 


j y 


oz 


40 


JZ 


I Uo 


67 


65 


1 04 


101 


C?"7 


7/1 

1 /4 


141 




2 


ZD 


A 1 


28 


,1 1 

4 J 


fy 


52 




1 7 ~1 


85 


67 


230 


124 


QO 

oy 




173 




3 


27 


49 


34 


42 


92 


61 


j j 


1 

I JJ 


97 


69 


262 


143 


9 1 


369 


203 


8 


1 


24 


39 


22 


39 


72 


41 


55 


1 1 7 


69 


71 


' 213 


1 05 r 


94 


304 


148 




2 


26 


47 


29 


40 


87 


53 


57 


1 40 


86 


73 


246 


127 


97 


350 


179 




3 


27 


52 


34 


-rZ. 


97 


62 




1 so 


98 


75 


269 


145 


00 

J J 


} X ^ 


206 


10 


1 


24 


42 


22 


38 


80 


42 


55 


130 


71 


74 


232 


108 


101 


' 324 


153 




2 


26 


50 


29 


40 


93 


54 


57 


153 


87 


76 


261 


129 


103 


366 


184 




3 


27 


55 


35 


41 


105 


63 


58 


170 


100 


78 


284 


1.48 


106 


397 


209 


15 


1 


24 


48 


23 


38 


93 


44 


54 


154 


74 


72 




114 


100 


384 


164 




2 


25 


55 


31 


39 


105 


55 


56 


174 


89 


74 


299 


134 


103 


4I9 


192 




3 


26 


59 


35 


41 


115 


64 


57 


189 


102 


76 


319 


153 


105 


448 


215 


20 


1 


24 


52 


24 


37 


102 


46 


53 


172 


77 


71 


T 313 


119 


98 


437 


173 




2 


25 


58 


31 


39 


114 


56 


55 


190 


91 


73 


i 335 


138 


101 


467 


199 




3 


26 


63 


35 


40 


123 


65 


57 


204 


104 


75 


353 


157 


104 


493 


222 


30 


1 


24 


54 


25 


37 


111 


48 


52 


192 


82 


69 


357 


127 ' 


96 


504 


187 




2 


25 


60 


32 


38 


122 


58 


54 


208 


95 


72 


376 


145 


99 


531 


209 




3 


26 


64 


36 


40 


131 


66 


56 


221 


1 07 


74 


392 


163 


101 


554 


233 


50 


1 


23 


51 


25 


" 36 


116 


51 


51 


209 


89 


67 


405 


143 


92 


582 


213 




2 


24 


59 


32 


37 


127 


61 


53 


225 


102 


70 


: 421 


161 


95 


604 


235 




3 


26 


64 


36 


39 


135 


69 


55 


237 


115 


72 


435 


180 


98 


624 


260 


100 


1 


23 


46 


24 


35 


108 


50 


49 


208 


92 


65 


428 


155 


88 


640 


237 




2 


24 


53 


31 


37 


120 


60 


5' 


224 


105 


67 


444 


174 


92 


660 


260 




3 


25 


59 


35 


38 


130 


68 


53 


237 


118 


69 


458 


193 


94 


679 


285 



COMMON VENT CAPACITY 



MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (square inches) 
12 19 i 28 38 50 



COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



VENT 
HEIGHT 
H 

(feet) 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 

+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 




NA 


74 


25 


NA 


119 


46 


NA 


178 


71 


NA 


257 


103 


NA 


351 


143 


8 


NA 


80 


28 


NA 


130 


53 


NA 


193 


82 


NA 


279 


119 


NA 


384 


163 


10 


NA 


84 


31 


NA 


138 


56 


NA 


207 


90 


NA 


299 


131 


NA 


409 


177 


15 


NA 


NA 


36 


NA 


152 


67 


NA 


233 


106 


NA 


334 


152 


523 


467 


212 


20 


NA 


NA 


41 


NA 


NA 


75 


NA 


250 


1 22 


NA 


368 


172 


565 


508 


243 


30 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


270 


137 


NA 


404 


198 


615 


564 


278 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


620 


328 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


348 



For SI units: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1000 British thermal units per hour = 0.293 k'W, 1 square inch = 0.000645 m 2 
* NA: Not applicable. 



2013 CALIFORNIA PLUMBING CODE 



117 



WATER HEATERS 



TABLE 510.2(3) 

MASONRY CHIMNEY [NFPA 54: TABLE 13.2(c)] (continued)* 

NUMBER OF APPLIANCES: TWO OR MORE 
APPLIANCE TYPE: CATEGORY I 
APPLIANCE VENT CONNECTION: TYPE B DOUBLE-WALL CONNECTOR 
VENT CONNECTOR CAPACITY 



TYPE B DOUBLE-WALL VENT CONNECTOR DIAMETER - D (inch) 
8 9 | 10 

APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 



VENT 
HEIGHT 


CONNECTOR 
RISE 


FAN 


NAT 


FAN 


NAT 


FAN 


NAT 


H 

(feet) 


R 

(feet) 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 


6 


1 


1 A A 

1 04 


"> "7 A 
3 /U 


201 


1 24 


479 


253 


1 45 


599 


319 




2 


1 07 


436 


232 


127 


562 


300 


148 


694 


378 




3 


1.09 


49 1 


270 


1 29 


633 


349 


1 5 1 


795 


439 


'8 


1 


1 1 3 


414 


210 


1 34 


539 


267 


156 


682 


335 




2 


1 1 6 


473 


240 


1 37 


615 


31 1 


160 


776 


394 




3 


1 1 9 


5 1 7 


276 


1 39 


672 


358 


1 63 


848 


452 


JO 


1 


1 zU 


AAA 

444 


216 


I4z 




277 


163 


739 


348 




2 


123 


498 


247 


145 


652 


321 


168 


825 


407 




3 


126 


540 


281 


147 


705 


366 


171 


893 


463 


15 


1 


125 " 


5 1 1 


229 " 


153 


658 


297 


184 


824 " 


375 




2 


128 


558 


260 


156 


718 


339 


187 


900 


432 




3 


131 


597 


292 


159 


760 


382 


190 


960 


486 


20 


1 


123 


584 


239 


150 


752 


312 


1 80 


943 


397 




2 


126 


625 


270 


153 


805 


354 


184 


1011 


452 




3 


129 


661 


301 


156 


851 


396 


187 


1067 


505 


30 


1 


119 


680 


" 255 " 


145 


883 


337 


175 


1115 


432 




2 


122 


715 


287 


149 


928 


378 


179 


1171 


484 




3 


125 


746 


317 


152 


968 


418 


182 


1220 


535 




1 


115 


798 


294 


140 


1049 


392 


168 


1334 


506 




2 


118 


827 


326 


143 


] 085 


433 


172 


1379 


558 




3 


121 


854 


357 


147 


1118 


474 


176 


142 1 


611 


100 




109 


907 


334 


134 


1222 


454 


16f 


1589 


596 




2 


113 


933 


368 


138 


1253 


497 


165 


1626 


651 




3 


116 


956 


399 


141 


1282 


540 


169 


1661 


705 



COMMON VENT CAPACITY 
MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (square inches) 
63 78 113 

COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



VENT 




















HEIGHT 


FAN 


FAN 


NAT 


FAN 


FAN 


NAT 


FAN 


FAN 


NAT 


H 


+FAN 


+NAT 


+NAT 


+FAN 


+NAT 


+NAT 


+FAN 


+NAT 


+NAT 


(feet) 






















NA 


458 


188 


NA 


582 


246 


1041 


853 


NA 


8 


NA 


501 


218 


724 


636 


278 


1144 


937 


408 


10 


606 


538 


236 


776 


686 


302 


1226 


1010 


454 


15 


682 


611 


283 


874 


781 


365 


1374 


1156 


546 


20 


742 


668 


325 


955 


858 


419 


1513 


1286 


648 


30 


816 


747 


381 


1062 


969 


496 


1702 


1473 


749 


50 


879 


831 


461 


1 1 65 


1 089 


606 


1 905 


1692 


922 


100 


NA 


NA 


499 


NA 


NA 


669 


2053 


1921 


1058 



For SI units: I inch = 25.4 mm, 1 fool = 304.8 mm, 1000 British thermal units per hour = 0.293 kW, 1 square inch = 0.000645 m 2 
* NA: Not applicable. 



118 



2013 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 510.2(4) 

MASONRY CHIMNEY [NFPA 54: TABLE 13.2(d)]* 



NUMBER OF APPLIANCES: TWO OR MORE 
APPLIANCE TYPE: CATEGORY I 
APPLIANCE VENT CONNECTION: SINGLE-WALL METAL CONNECTOR 



VENT CONNECTOR CAPACITY 




SINGLE-WALL METAL VENT CONNECTOR DIAMETER - 


D(inch) 




3 


4 5 


6 i 


7 



APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 



VENT 
HEIGHT 
H 
(feet) 


CONNECTOR 
RISE 


FAN NAT 


FAN NAT 


FAN NAT FAN NAT 


FAN NAT 


R 

(feet) 


Min 


Max Max 


Min Max Max 


Min 


Max Max Min 


Max Max 


Min 


Max Max 


6 


2 
3 


NA 
NA 
NA 


NA 21 
NA 28 
NA 34 


NA : NA 39 
NA : NA 52 
NA ; NA 61 


NA 
NA 
1 34 


NA 66 
NA 84 
153 97 


179 
186 
193 


191 100 

227 123 
258 142 


231 
239 
247 


271 140 
321 172 
365 202 




1 

2 
3 


NA 
NA 
NA 


NA" 21 
NA 28 

NA 34 


NA : NA 40 
NA NA 52 
NA . NA 62 


NA 
137 
143 


NA 68 
139 85 
156 98 


195 
202 
210 
202 
210 
217 


208 103 
240 1 25 
264 145 


250 
258 
266 


298 146 
343 177 
376 205 


10 


1 

2 
3 


" NA 
NA 
NA 


NA 22 
NA 29 
NA 34 


NA 
NA 
97 


NA 41 
NA 53 
102 62 


130 
136 
143 


151 70 
150 86 
166 99 


225 106 
255 128 
277 147 


267 
276 
284 


316 151 
358 181 

389 207 


15 


1 

2 
3 


NA 
NA 
NA 


NA 23 
NA 30 
NA 34 


NA 
92 
96 


NA 43 
103 54 
1 1 2 63 


129 
135 
141 


151 WWm 

170 88 
185 101 


199 
207 
215 


271 112 
295 132 
315 151 


268 
277 
286 


376 161 
411 189 
439 213 


20 


2 
3 


NA 
NA 
NA 


NA ' 23 
NA 30 
NA 35 


87 
91 

96 


99 45 
1 1 1 55 
119 64 


128 
134 
140 


167 76 
185 90 
199 103 


197 
205 
213 


303 117 
325 136 
343 154 


265 
274 
282 


425 169 
455 195 
481 219 


30 


1 

2 
3 


NA 
NA 
NA 


NA 24 
NA 31 

NA 35 


~ 86 
91 
95 


108 47 
119 57 
127 65 


126 
132 
138 


187 80 
203 93 
2.16 105 


193 
201 
209 


347 124 
366 142 
381 160 


259 
269 
277 


492 1 83 
5 1 8 205 
540 229 


50 


1 

2 
3 


NA 
NA 
NA 


NA 24 
NA 31 
NA 35 


85 
89 
94 


1 1 3 50 
123 60 
1 3 1 68 


.124 
130 
136 


204 87 
218 100 
231 112 


188 
196 
205 


392 139 
408 158 
422 176 


252 
262 
271 


567 208 
588 230 
607 255 


100 


1 

2 
3 


NA NA 23 
NA NA 30 

NA NA : 34 


84 " 

88 

93 


"104 49 
115 59 
124 67 


122 
127 
133 


200 89 
215 102 
228 115 


182 
190 
199 


410 151 
425 169 
438 188 


243 
253 
262 


617 232 
636 254 
654 279 



COMMON VENT CAPACITY 



MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (square inches) 
12 19 28 38 50 



COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



VENT 
HEIGHT 
H 
(feet) 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


FAN 
+FAN 


FAN 
+NAT 


NAT 
+NAT 


6 


NA 


NA 


25 


NA 


118 


45 


NA 


176 


71 ; 


NA 


255 


102 


NA 


348 


142 


8 


NA 


NA 


28 


NA 


128 


52 


NA 


190 


81 | 


NA 


276 


118 


NA 


380 


162 


10 


NA 


NA 


31 


NA 


136 


56 


NA 


205 


89 i 


NA 


295 


129 


NA 


405 


175 


15 


NA 


NA 


36 


NA 


NA 


66 


NA 


230 


105 j 


NA 


335 


150 


NA 


400 


210 


20 


NA 


NA 


NA 


NA 


NA 


74 


NA 


247 


120 


NA 


362 


170 


NA 


503 


240 


30 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


135 I 


NA 


398 


195 


NA 


558 


275 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA j 


NA 


NA 


NA 


NA 


612 


325 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA ! 


NA 


NA 


NA 


NA 


NA 


NA 



For SI units: 1 inch ~ 25.4 mm, 1 foot = 304.8 mm, 1000 British thermal units per hour = 0.293 k'W, I square inch = 0.000645 in 2 
* NA: Not applicable. 



2013 CALIFORNIA PLUMBING CODE 



119 



WATER HEATERS 



TABLE 510.2(4) 

MASONRY CHIMNEY [NFPA54: TABLE 13.2(d)] (continued)* 

NUMBER OF APPLIANCES: |TWO OR MORE 
APPLIANCE TYPE: CATEGORY I 
APPLIANCE VENT CONNECTION: i SINGLE-WALL METAL CONNECTOR 
VENT CONNECTOR CAPACITY 



SINGLE-WALL METAL VENT CONNECTOR DIAMETER - D (inch) 
8 9 10 

APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 



VENT 
HEIGHT 


CONNECTOR 
RISE 


FAN 


NAT 




FAN 


NAT 


FAN 


NAT 


H 

(feet) 


R 
(feet) 


Min 


Max 


Max 


Min 


Max 


Max 


Min 


Max 


Max 




1 


292 


366 


"200 


362 


474 


" 252 


499 


594 


316 




2 


30 1 


432 


23.1 


373 


557 


299 


JU7 


696 


376 




3 


300 


49 1 


269 


381 


634 


348 


5 1 9 


793 


437 




1 


3 | 3 


407 


207 ' 


387 


530 


263 


529 


672 


331 




2 


323 


465 


238 


397 


607 


309 


540 


766 


391 




n 

J 


332 


j\jy 


274 


407 


663 


356 


1 

j j I 


OJO 


450 


10 


1 


333 


434 


213 


410 


571 


273 


558 


727 


343 




2 


343 


489 


244 


420 


640 


317 


569 


813 


403 




3 


352 


530 


279 


430 


694 


363 


580 


880 


459 




1 


349 


" ' 502 


225 


445 


646 


291 


623 


808 


366 




2 


359 


548 


256 


456 


706 


334 


634 


884 


424 




3 


368 


586 


289 


466 


755 


378 


646 


945 


479 


20 


1 


345 


569 


235"' 


439 


734 


306 


614 


921 


387 




2 


355 


610 


266 


450 


787 


348 


627 


986 


443 




3 


365 


644 


298 


461 


831 


391 


639 


1042 


496 


30 


1 


338 


665 


250 


430 


864 


330 


600 


1089 


421 




2 


348 


699 


282 


442 


908 


372 


613 


1 145 


473 




3 


358 


729 


312 


452 


946 


412 


626 


1193 


524 


50 


1 


328 


778 


287 


417 


1022 


383 


582 


1302 


492 




2 


339 


806 


320 


429 


1058 


425 


596 


1346 


545 




3 


349 


831 


351 


440 


1090 


466 


610 


1386 


597 


100 


1 


315 


875 


328 


402 


1181 


444 


560 


1537 


580 




2 


326 


899 


361 


415 


1210 


488 


575 


1570 


634 




3 


-> -7 


921 


392 


427 


1238 


529 


589 


1604 


687 



COMMON VENT CAPACITY 
MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (square inches) 
63 78 113 

COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



VENT 




















HEIGHT 


FAN 


FAN 


NAT 


FAN 


FAN 


NAT 


FAN 


FAN 


NAT 


H 


+FAN 


+NAT 


+NAT 


+FAN 


+NAT 


+NAT 


+FAN 


+NAT 


+NAT 


(feet) 






















NA 


455 


187 


NA 


579 


245 


NA 


846 


NA 


8 


NA 


497 


217 


NA 


633 


277 


1136 


928 


405 


10 


NA 


532 


234 


771 


680 


300 


1216 


1000 


450 


15 


677 


602 


280 


866 


772 


360 


1359 


1 139 


540 


20 


765 


661 


321 


947 


849 


415 


1495 


1264 


640 


30 


808 


739 


377 


1052 


957 


490 


1682 


1447 


740 


50 


NA 


821 


456 


1152 


1076 


600 


1879 


1672 


910 


100 


NA 


NA 


494 


NA 


NA 


663 


2006 


1885 


1046 



For SI units: 1 inch = 25.4 nun, 1 foot = 304.8 mm, 1000 British thermal units per hour - 0.293 kW, 1 square inch = 0.000645 m 2 
* N A : N ot app I i cab 1 c . 



120 



2013 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 510.2(5) 

SINGLE-WALL METAL PIPE OR TYPE B ASBESTOS-CEMENT VENT [NFPA 54: TABLE 13.2(e)]* 











NUMBER OF APPLIANCES: 


TWO OR MORE 










APPLIANCE TYPE: 


DRAFT HOOD-EQUIPMENT 










APPLIANCE VENT CONNECTION: 


DIRECT TO PIPE OR VENT 










VENT CONNECTOR CAPACITY 












VENT CONNECTOR DIAMETER - D (inch) 




TOTAL VENT 
HEIGHT 


CONNECTOR 
RISE 


3 


4 


5 


6 


7 


8 














H 
(feet) 


Ft 
(feet) 




APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 






1 


21 


40 


68 


102 


146 


205 


6-8 


2 


28 


53 


86 


124 


178 


235 




3 


34 


61 


98 


147 


204 


275 




1 


23 


44 


77 


117 


179 


240 


15 


2 


30 


56 


92 


134 


194 


265 




3 


35 


64 


102 


155 


216 


298 


30 
and up 


1 


25 


49 


84 


129 


1 90 


270 


2 


31 


58 


97 


145 


211 


295 


3 


36 


68 


107 


164 


232 


321 







COMMON VENT CAPACITY 








COMMON VENT DIAMETER 


- D (inch) 






TOTAL VENT 


4 


5 


6 


7 


8 


10 


12 


HEIGHT 
















H 




COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 




(feet) 
















6 


48 


78 


111 


155 


205 


320 


NA 


8 


55 


89 


128 


175 


234 


365 


505 


10 


59 


95 


136 


1 90 


250 


395 


560 


15 


71 


115 


168 


228 


305 


480 


690 


20 


80 


129 


186 


260 


340 


550 


790 


30 


NA 


147 


215 


300 


400 


650 


940 


50 


NA 


NA 


NA 


360 


490 


8 1 


1 1 90 



For SI units: 1 inch = 25.4 mm, 
* NA: Not applicable. 



1 foot = 304.8 mm, 1000 British thermal units per hour = 0.293 kW, 1 square inch = 0.000645 nr 



TABLE 510.2(6) 

EXTERIOR MASONRY CHIMNEY [NFPA 54-12: TABLE 13.2(f)]* 

NUMBER OF APPLIANCES: TWO OR MORE 
APPLIANCE TYPE: NAT + NAT 
APPLIANCE VENT CONNECTION: TYPE B DOUBLE-WALL CONNECTOR 
COMBINED APPLIANCE MAXIMUM INPUT RATING IN THOUSANDS OF BTU PER HOUR 



VENT HEIGHT 
H 






INTERNAL AREA OF CHIMNEY (square inches) 






(feet) 


12 


19 


28 


38 


50 


63 


78 


113 


6 


25 


46 


71 


103 


143 


188 


' 246 


NA 


8 


28 


53 


82 


119 


163 


218 


278 


408 


10 


31 


56 


90 


131 


177 


236 


302 


454 


15 


NA 


67 


106 


152 


212 


283 


365 


546 


20 


NA 


NA 


NA 


NA 


NA 


325 


419 


648 


30 


NA 


NA 


NA 


NA 


NA 


NA 


496 


749 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


922 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 



For SI units: I inch = 25.4 mm, I foot = 304.8 mm, 1000 British thermal units per hour = 0.293 kW, 1 square inch = 0.000645 m 2 
* NA: Not applicable. 



2013 CALIFORNIA PLUMBING CODE 



121 



WATER HEATERS 



TABLE 510.2(7) 

EXTERIOR MASONRY CHIMNEY [NFPA 54-12: TABLE 13.2(g)] 12 

NUMBER OF APPLIANCES:] TWO OR MORE 
APPLIANCE TYPE: NAT + NAT 
APPLIANCE VENT CONNECTION: TYPE B DOUBLE-WALL CONNECTOR 
| MINIMUM ALLOWABLE INPUT RATING OF SPACE-HEATING APPLIANCE IN THOUSANDS OF BTU PER , hq^r 



VENT HEIGHT INTERNAL AREA OF CHIMNEY (square inches) 



H 

(feet) 


12 


19 


28 


38 


50 


63 


78 


113 






Local 99% winter design temperature: 37°F or greater 






6 




















~ o 


NA 


8 




















o 





10 


























1.5 


NA 























20 


NA 


NA 


NA 


NA 


NA 


184 








30 


NA 


NA 


NA 


NA 


NA 


393 


334 





50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


579 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 






Loca 


99% winter design temperature: 27°F to 36° 


F 






6 








68 


NA 


NA 


180 


212 


NA 


8 








82 


NA 


NA 


187 


214 


263 


10 





51 


NA 


NA 


NA 


201 


225 


265 


15 


NA 


NA 


NA 


NA 


NA 


253 


274 


305 


20 


NA 


NA 


NA 


NA 


NA 


307 


330 


362 


30 


NA 


NA 


NA 


NA 


NA 


NA 


445 


485 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


763 


1 00 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 






Local 99% winter design temperature: I7°F to 26°F 






6 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


8 


NA 


NA 


NA 


NA 


NA 


NA 


264 


352 


10 


NA 


NA 


NA 


NA 


NA 


NA 


278 


358 


15 


NA 


NA 


NA 


NA 


NA 


NA 


331 


398 


20 


NA 


NA 


NA 


NA 


NA 


NA 


387 


457 


30 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


581 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


862 


1 00 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 






Local 99% winter design temperature: 5°F to 16°F 






6 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


8 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


10 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


430 


15 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


485 


20 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


547 


30 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


682 


50 


NA 


NA 


NA 


NA 


NA 


NA. 


NA 


NA 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 



Local 99%) winter design temperature: 4°F or lower 
Not recommended for any vent configurations 



For SI units: I inch - 25.4 mm, 1 foot = 304.8 mm, 1000 British thermal units per hour = 0.293 kW, 1 square inch - 0.000645 m 2 , °C - (°F-32)/L8 
Notes: 

1 See Figure 5 1 0. 1 .2(6) for a map showing local 99 percent winter design temperatures in the United States. 

2 NA: Not applicable. 



122 



2013 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 510.2(8) 

EXTERIOR MASONRY CHIMNEY [NFPA 54-12: TABLE 13.2(h)]* 



VENT HEIGHT 



NUMBER OF APPLIANCES: TWO OR MORE 
APPLIANCE TYPE: FAN + NAT 
APPLIANCE VENT CONNECTION: TYPE B DOUBLE-WALL CONNECTOR 
COMBINED APPLIANCE MAXIMUM INPUT RATING IN THOUSANDS OF BTU PER HOUR 
INTERNAL AREA OF CHIMNEY (square inches) 



H 

(feet) 


12 


19 


28 


38 


50 


63 


78 


113 


6 


74 


119 


178 


257 


351 


458 


582 


853 


8 


80 


!30 


193 


279 


384 


501 


636 


937 


10 


84 


138 


207 


299 


409 


538 


686 


1 L 


15 


NA 


152 


233 


334 


467 


611 


781 


1 1 56 


20 


NA 


NA 


250 


368 


508 


668 


858 


1286 


30 


NA 


NA 


NA 


404 


564 


747 


969 


1473 


50 


NA 


NA 


NA 


NA 


NA 


831 


1089 


1692 


1 00 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1921 



For SI units: I inch = 25.4 mm, 1 foot 
* NA: Not applicable. 



: 304.8 mm, 1000 British thermal units per hour = 0.293 k'W, 1 square inch - 0.000645 m 2 



2013 CALIFORNIA PLUMBING CODE 



123 



WATER HEATERS 



TABLE 510.2(9) 

EXTERIOR MASONRY CHIMNEY [SSSFPA 54-12: TABLE 13.2(i)] 1 2 





NUMBER OF APPLIANCES: 


TWO OR MORE 


APPLIANCE TYPE: 


FAN + NAT 


APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE-WALL CONNECTOR 


MINIMUM ALLOWABLE INPUT RATING OF SPACE-HEATING APPLIANCE IN THOUSANDS OF BTU PER HOUR 



VENT HEIGHT INTERNAL AREA OF CHIMNEY (square inches) 



H 

(feet) 


12 


19 


28 


38 


50 


63 


78 


113 


Local 99% winter design temperature: 37°F or greater 


6 























o ' 


8 


























10 


























15 


NA 























20 


NA 


NA 


123 


190 


249 


184 








30 


NA 


NA 


NA 


334 


398 


393 


334 





50 


NA 


NA 


NA 


NA 


NA 


714 


707 


579 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1600 






Local 99% winter design temperature: 27°F to 36 C F 








o 





68 


116 


156 


180 


~ 212 ~ 


""266" 


8 








82 


127 


167 


187 


214 


263 


10 





51 


97 


141 


183 


201 


225 


265 


15 


NA 


111 


142 


183 


233 


253 


274 


305 


20 


NA 


NA 


187 


230 


284 


307 


330 


362 


30 


NA 


NA 


NA 


330 


319 


419 


445 


485 


50 


NA 


NA 


NA 


NA 


NA 


672 


705 


763 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1554 


Local 99% winter design temperature: 17°F to 26°F 


6 





55 


99 


141 


182 


215 


259 


349 


8 


52 


74 


1 1 1 


154 


197 


226 


264 


352 


10 


NA 


90 


125 


169 


214 


245 


278 


358 


15 


NA 


NA 


167 


212 


263 


296 


331 


398 


20 


NA 


NA 


212 


258 


316 


352 


387 


457 


30 


NA 


NA 


NA 


362 


429 


470 


507 


581 


50 


NA 


NA 


NA 


NA 


NA 


723 


766 


862 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1669 






Local 99% winter design temperature: 5°F to I6°F 








NA 


78 


121 


166 


214 


252 


301 


416 


8 


NA 


94 


135 


182 


230 


269 


31.2 


423 


10 


NA 


111 


149 


198 


250 


289 


331 


430 


15 


NA 


NA 


193 


247 


305 


346 


393 


485 


20 


NA 


NA 


NA 


293 


360 


408 


450 


547 


30 


NA 


NA 


NA 


377 


450 


531 


580 


682 


50 


NA 


NA 


NA 


NA 


NA 


797 


853 


972 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1833 


Local 99% winter design temperature: -10°F to 4°F 


6 


NA 


NA 


145 


196 


249 


296 


349 


484 


8 


NA 


NA 


159 


213 


269 


320 


371 


494 


10 


NA 


NA 


175 


231 


292 


339 


397 


513 


15 


na 


NA 


NA 


283 


351 


404 


457 


586 


20 


NA 


NA 


NA 


333 


408 


468 


528 


650 


30 


NA 


NA 


NA 


NA 


NA. 


603 


667 


805 


50 


NA 


NA 


NA 


NA 


NA 


NA 


955 


1003 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 



Local 99%o winter design temperature: -] 1°F or lower 
Not recommended for any vent configurations 



For SI units: I inch = 25.4 mm, 1 foot = 304.8 mm, 1 000 British thermal units per hour = 0.293 kW, 1 square inch = 0.000645 m% °C = (°F-32)/1 .8 
Notes: 

1 See Figure 5 1 .0. 1 .2(6) for a map showing local 99 percent winter design temperatures in the United States. 

2 NA: Not applicable. 



124 



2013 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 6 - WATER SUPPLY AND DISTRIBUTION 

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 



Adopting Agency 


BSC 


SFNl 


HCD 


DSA 


OSHPD 


3 SCC 


DPH 


AGR 


DWR 


CA 


SL 


SLC 


1 


2 


1 -AC 


AC 


SS 


SS /cc 


1 


2 


3 


4 


Adopt Entire Chapter 








































Adopt Entire Chapter as amended 
(amended sections listed below) 


X 




X 


X 






X 


X 


X 


X 


X 


X 






X 










Adopt only those sections that are 

HstpH hplnw 

ilijlvU L/viv Vt 

Chapter/Section 




A 
























V 
A 






v 
A 






601.1 Exceptions 






Y 
A 


Y 
A 
























v 

A 








£01 9 9 






Y 
A 


Y 
A 
































£0 1 1 

OU 1 .J 


































X 






OU 1 






























X 










A0 1 ^ 

OU L .J 






























Y 

A 










OU 1 ,o 






























X 










£01 7 




























X 










£fn ^ 1 1 






V 
A 


Y 
A 
































£fH ^ 1 ^ \Jntf» 




Y 
A 




































OUH. 1 HACcpilUil 


















Y 

A 


X 


X 


Y 

A. 
















Tnhlp £04 1 
1 dUlC OUH. 1 


Y 

A. 




Y 
A 


Y 
A 






Y 
A 


Y 

A 












x 


x 










i duic ouh-. i /isutbius - ^eiiiciiL 














+ 

T 


+ 

T 
























£04 1 1 

OUH .1.1 






Y 
A 


Y 
A 
































£04 1 9 






A 


Y 
A 
































£04 1 1 XJntA 

ou^f . 1 1 in ore 






Y 
A 


Y 
A 
































UUH. 1 J 


V 

A 




Y 

A 


Y 

A 
































£0^ ^19 

OUJ.J.J.Z 


















Y 

A. 


X 


X 


Y 

A 
















£0S 4 9 






Y 
A 


Y 
A 
































ou i u oc suoseciions 


















Y 

A 


X 


X 


Y 

A 
















£0^ 1 1 

OU J. 1 1 


A. 




A 


Y 

A 
































£0S 1 ^ 9 






Y 

A 


































£0S 1£ 
OU J. 1 o 






Y 

A. 


Y 

A. 










Y 
A 


X 


X 


Y 
A 
















£0£ R 

OUO.o 


















Y 
A 


X 


X 


Y 
A 
















£OQ Q 


















Y 
A 


X 


X 


Y 
A 
















£00 10 

OU". 1U 






T 


T 
































1 dUlC U 1 U.J 








X 
































613.0 & subsections 


















X 


X 


X 


X 
















Table 613.1 


















X 


X 


X 


X 
















614.0 & subsections 


















X 


X 


X 


X 
















615.1 subsection 


















X 


X 


X 


X 
















615.2 


















X 


X 


X 


X 
















615.3 


















X 


X 


X 


X 
















615.4 


















X 























The state agency does not adopt sections identified by the following symbol: f 



201 3 CALIFORNIA PLUMBING CODE JANUARY 1 , 201 4 ERRATA 1 25 

BUFF 



2013 CALIFORNIA PLUMBING CODE 



CHAPTER 6 

WATER SUPPLY AND DISTRIBUTION 



601.0 Hot and Cold Water Required. 

601.1 General. Except where not deemed necessary for 
safety or sanitation by the Authority Having Jurisdiction, 
each plumbing fixture shall be provided with an adequate 
supply of potable running water piped thereto in an 
approved manner, so arranged as to flush and keep it in a 
clean and sanitary condition without danger of backflow or 
cross-connection. Water closets and urinals shall be flushed 
by means of an approved flush tank or flushometer valve. 

Exceptions: 

(!) [BCD 1, BCD 2 and DWR] Listed fixtures that do not 
require water for their operation and are not connected 
to the water supply. 

(2) [BCD 1 & BCD 2] For limited-density owner-built 
rural dwellings, potable water shall be available to the 
dwelling site, although such water need not be pressur- 
ized. Where water is not piped from a well, spring, cis- 
tern or other source, there shall be a minimum reserve 
of 50 gallons (189 L) of pota ble water a vailable. 
Where water delivery is pressurized, piping shall be 
installed in accordance with the provisions of this 
chapter. 

(3) [BCD 1 & HCD 2] Where deemed not necessary for 
safety or sanitation by the Enforcing Agency. 

(4) [BCD 1 & BCD 2] Recycled water or treated gray wa- 
ll ter may be allowed as specified in Chapter 16A Part II 

of th is code. 

(5) [DWR] Where a public agency requires a building to 
use recycled water to flush water closets and urinals in 
accordance with California Water Code 13554. 

In occupancies where plumbing fixtures are installed 
for private use, hot water shall be required for bathing, 
washing, laundry, cooking purposes, dishwashing or main- 
tenance. In occupancies where plumbing fixtures are 
installed for public use, hot water shall be required for 
bathing and washing purposes. This requirement shall not 
supersede the requirements for individual temperature con- 
S trol limitations for public lavatories, bidets, bathtubs, 
whirlpool bathtubs and shower control valves. 

601.2 Identification of a Potable and Nonpotable Water 
System. In buildings where potable water and nonpotable 
water systems are installed, each system shall be clearly 
identified in accordance with Section 601.2.1 through Sec- 
tion 601.2.4. 

601.2.1 Potable Water. Green background with white 
lettering. 

601.2.2 Color and Information. Each system shall be 
identified with a colored pipe or band and coded with 
paints, wraps, and materials compatible with the pip- 
ing. 



Except as required in Section 601.2.2.1, non- 
potable water systems shall have a yellow background 
with black uppercase lettering, with the words "CAU- 
TION: NONPOTABLE WATER, DO NOT DRINK." 
Each nonpotable system shall be identified to designate 
the liquid being conveyed, and the direction of normal 
flow shall be clearly shown. The minimum size of the 
letters and length of the color field shall comply with 
Table 601.2.2. [BCD 1 & BCD 2] An international 
symbol of a glass in a circle with a slash through it 
shall be provided similar to that shown in Figure 601 
for all nonpotable water systems. 

The background color and required information 
shall be indicated every 20 feet (6096 mm) but not less 
than once per room, and shall be visible from the floor 
level. 




FIGURE 601 
INTERNATIONAL SYMBOL 

601.2.2.1 Alternate Water Sources. Alternate 
water source systems shall have a purple (Pantone 
color No. 512, 522C, or equivalent) background 
with uppercase lettering and shall be field or fac- 
tory marked as follows: 

(1) Gray water systems shall be marked in accor- 
dance with this section with the words "CAU- 
TION: NONPOTABLE GRAY WATER, DO 
NOT DRINK" in yellow letters (Pantone 108 
or equivalent). 

(2) Reclaimed (recycled) water systems shall be 
marked in accordance with this section with 
the words: "CAUTION: NONPOTABLE 
RECLAIMED (RECYCLED) WATER, DO 
NOT DRINK" in black letters. 

(3) On-site treated water systems shall be marked 
in accordance with this section with the 
words: "CAUTION: ON-SITE TREATED 
NONPOTABLE WATER, DO NOT DRINK" 
in yellow letters (Pantone 108 or equivalent). 

(4) Rainwater catchment systems shall be marked 
in accordance with this section with the 
words: "CAUTION: NONPOTABLE RAIN- 
WATER, DO NOT DRINK" in yellow letters 
(Pantone 108 or equivalent). 



2013 CALIFORNIA PLUMBING CODE 



127 



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TABLE 601.2.2 

MINIMUM LENGTH OF COLOR FIELD AND SIZE OF LETTERS 



OUTSIDE DIAMETER OF 
PIPE OR COVERING 
(inches) 


MINIMUM LENGTH 
OF COLOR FIELD 
(inches) 


MINIMUM SIZE OF 
LETTERS 
(inches) 


10 1 % 


8 




V/Ao2 


8 


Y 


2Vi to 6 


12 


114 


8 to 1 


24 


2 J/9 


Over ! 


32 





For SI units: I inch ~ 25.4 mm 

601.2.3 Fixtures. Where vacuum breakers or back flow 
preventers are installed with fixtures listed in Table 
1 40 1.1, identification of the discharge side shall be 
permitted to be omitted. 

601.2.4 Outlets. Each outlet on the nan potable water 
line that is used for special purposes shall be posted 
with black uppercase lettering as follows: "CAUTION: 
NONPOTABLE WATER, DO NOT DRINK." 

601.3 fCAf Schools of Cosmetology and Cosmetological 
Estab lis h m en ts. 

601.3.1 Hot-anil Cold running Water. At least one 
sink with hot-arid cold-running water shall be provided 
in each work area or workroom where hairdressing is 
performed in each school and establishment. 

601.3.2 Handwashing Facilities. Each school and 
establishment shall provide adequate handwashing 
facilities, including ho! -and cold-running water, 
located within or adjacent to the toilet room or rooms 
in accordance with Table 422.1. 

601.3.3 Drinking Water. Each school and establish- 
ment shall supply potable drinking water convenient to 
students, patrons and employees. Approved sanitary 
drinking fountains shall be installed and so regulated 
that a jet of at least 2 inches (51 mm) shall be con- 
stantly available. 

601.4 [AGR] Meat and Poultry Processing Plants. Except 
as provided in Section 601.4.4, the water supply shall be 
ample and potable, with adequate pressure and facilities 
for its distribution in the plant, and its protection against 
con tarn in at ion and pol I u Hon . 

Note: A. water report, issued under the authority of the 
state health agency, certifying to the potability of the water- 
supply, shall be obtained by the applican t and furnished to 
the administrator whenever such report is required by the 
administrator. 

601.4.1 A supply of hot water shall be available. 

601.4.2 Hose connections with steam and water-mixing 
valves or hot-water hose connections shall be provided 
at locations throughout the plant. 

601.4.3 The refuse rooms shall be provided with facili- 
ties for washing refuse cans and other equipment in the 
rooms. 



601.4.4 Non-potable water is permitted only in those 
parts of official plants where no product is handled or 
prepared, and then only for limited purposes, such as 
on condensers not connected with the potable water 
supply, in vapor lines serving inedible product render- 
ing tanks, and in sewer lines for moving hea vy solids in 
the sewage. In all cases, non-potable water lines shall 
be clearly identified and shall not be cross connected 
with the potable water supply. 

Exception: Cross connection is permitted if this is nec- 
essary for fire protection and such connection is of a 
type with a break to ensure against accidental contam- 
ination, and to be approved by local authorities and by 
the Department. 

60.1.4.5 Equipment using potable water shall be so 
installed as to prevent backs iphonage into the potable 
water system. 

601.4.6 All pipelines, reservoirs, tanks, cooling towers 
and like equipment; employed in handling reused water 
shall be constructed and installed so as to facilitate 
their cleaning and inspection. 

601.4.7 Hot water of such temperature as to accom- 
plish a thorough cleanup shall be delivered under 
pressure to outlets. 

601.4.7.1 An ample supply of water at not less 
than 180°F (82° C) shall be available when used 
for sanitizing purposes. 

601.4.8 Pens, alleys, and runways shall have hose con- 
nections for cleanup purposes. 

601.5 [AGR] Collection Centers and Facilities. 

601.5.1 The water supply shall be ample with facilities 
for its distribution. An ample supply of water at not 
less than 180°F (82°C) f or other suitable method. 

601.5.2 The vehicle cleaning and sanitizing area shall 
be provided with adequate line steam, producing a 
temperature o f at least 180°F (82° C), or other suitable 
method. 

601.5.3 Hose connections with steam and water-mixing 
valves of hot-and cold-water hose connections shall be 
provided at locations throughout the building and at 
unloading and vehicle cleaning slabs. 

601. 6 [AGR] Render ers. This area shall be provided with 
live steam or other method of sanitizing vehicles. 

601. 7 [A GRJ Horse Meat and Pet Food Establishments. 

601.7.1 The water supply shall be ample, clean and 
potable, with facilities for its distribution in the plant, 
and its protection against contamination and pollution. 

601.7.1.1 Equipment using potable water shall be 
so installed as to prevent back-siphonage into the 
potable water system. 

601.7.1.2 Non-potable water is permitted only in 
those parts of official plants where no edible product 
is handled or prepared, and then only for limited 
purposes, such as on ammonia condensers not con- 
nected with the potable water supply, in vapor lines 
serving inedible product rendering tanks, in connec- 



128 



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tion with equipment used for washing and washing 
inedible products preparatory to tanking, and in 
sewer lines for moving heavy solids in sewage. In all 
cases, non-potable water lines shall be clearly identi- 
fied and shall not be cross connected with the 
potable water supply. 

Exception: Cross connection is permitted if this is 
necessary for fire protection, and such connection 
is of a type with a break to ensure against acciden- 
tal contamination, and is approved by local author- 
ities or by the Department 

601.7.2 All pipelines, reservoirs, tanks, cooling towers, 
and like equipment employed in handling reused water 
shall be constructed and installed so as to facilitate 
their cleaning and inspection. 

601.7.3 Hot water for cleaning rooms and equipment 
shall be delivered under pressure to outlets and shall 
be of such temperature as to accomplish a thorough 
cleanup. 

601. 7.3.1 An ample supply of water at not less 
than 180°F (82° C) shall be available when used 
for sanitizing purposes. 

601.7.4 Pens, alleys, and runways shall have hose con- 
nections for cleanups purposes. 

602.0 Unlawful Connections. 

602.1 Prohibited Installation. No installation of potable 
water supply piping, or part thereof, shall be made in such a 
manner that it will be possible for used, unclean, polluted, 
or contaminated water, mixtures, or substances to enter a 
portion of such piping from a tank, receptor, equipment, or 
plumbing fixture by reason of backsiphonage, suction, or 
other cause, either during normal use and operation thereof, 
or where such tank, receptor, equipment, or plumbing fix- 
ture is flooded or subject to pressure exceeding the operat- 
ing pressure in the hot or cold water piping. 

602.2 Cross-Contamination. No person shall make a con- 
nection or allow one to exist between pipes or conduits car- 
rying domestic water supplied by a public or private build- 

| ing supply system, and pipes, conduits, or fixtures contain- 
ing or carrying water from any other source or containing 
or carrying water that has been used for a purpose whatso- 
ever, or piping carrying chemicals, liquids, gases, or sub- 
stances whatsoever, unless there is provided a backflow 
prevention device approved for the potential hazard and 
maintained in accordance with this code. Each point of use 
shall be separately protected where potential cross-contami- 
nation of individual units exists. 

602.3 Backflow Prevention. No plumbing fixture, device, 
or construction shall be installed or maintained, or shall be 
connected to a domestic water supply, where such installa- 
tion or connection provides a possibility of polluting such 
water supply or cross-connection between a distributing 
system of water for drinking and domestic purposes and 
water that becomes contaminated by such plumbing fixture, 
device, or construction unless there is provided a backflow 
prevention device approved for the potential hazard. 



602.4 Approval by Authority. No water piping supplied 
by a private water supply system shall be connected to any 
other source of supply without the approval of the Author- 
ity Having Jurisdiction, Health Department, or other 
department having jurisdiction. 

603.0 Cross-Connection Control. 

603.1 General. Cross-connection control shall be provided 
in accordance with the provisions of this chapter. 

No person shall install a water-operated equipment or 
mechanism, or use a water-treating chemical or substance, 
where it is found that such equipment, mechanism, chemi- 
cal, or substance causes pollution or contamination of the 
domestic water supply. Such equipment or mechanism shall 
be permitted where equipped with an approved backflow 
prevention device or assembly. 

603.2 Approval of Devices or Assemblies. Before a 
device or an assembly is installed for the prevention of 
backflow, it shall have first been approved by the Authority 
Having jurisdiction. Devices or assemblies shall be tested 
in accordance with recognized standards or other standards 
acceptable to the Authority Having Jurisdiction. Backflow 
prevention devices and assemblies shall comply with Table 
603.2, except for specific applications and provisions as 
stated in Section 603.5.1 through Section 603.5.21 . 

Devices or assemblies installed in a potable water sup- 
ply system for protection against backflow shall be main- 
tained in good working condition by the person or persons 
having control of such devices or assemblies. Such devices 
or assemblies shall be tested at the time of installation, 
repair, or relocation and not less than on an annual schedule 
thereafter, or more often where required by the Authority 
Having Jurisdiction. Where found to be defective or inoper- 
ative, the device or assembly shall be repaired or replaced. 
No device or assembly shall be removed from use or relo- 
cated or other device or assembly substituted, without the 
approval of the Authority Having Jurisdiction. 

Testing shall be performed by a certified backflow 
assembly tester in accordance with ASSE Series 5000 or 
otherwise approved by the Authority Having jurisdiction. 

603.3 Backflow Prevention Devices, Assemblies, and 
Methods. 

603.3.1 Air Gap. The minimum air gap to afford back- 
flow protection shall be in accordance with Table 
603.3.1. 

603.3.2 Atmospheric Vacuum Breaker (AVB). An 
atmospheric vacuum breaker consists of a body, a 
checking member, and an atmospheric port. 

603.3.3 Hose Connection Backflow Preventer. A hose 
connection backflow preventer consists of two indepen- 
dent check valves with an independent atmospheric vent 
between and a means of field testing and draining. 

603.3.4 Double Check Valve Backflow Prevention 
Assembly (DC). A double check valve backflow pre- 
vention assembly consists of two independently acting 
internally loaded check valves, four properly located 
test cocks, and two isolation valves. 



2013 CALIFORNIA PLUMBING CODE 



129 



WATER SUPPLY AND DISTRIBUTION 



DEVICE, ASSEMBLY, 
OR METHOD 1 



Air gap 

! Air gap fittings for use 
with plumbing fixtures, 
appliances and appurte- 
nances 



Atmospheric vacuum 
breaker (consists of a body, 
checking member and 
atmospheric port) 

Antisiphon fill valve (ball- 
cocks) for gravity water 
closet flush tanks and uri- 
nal tanks 



Vacuum breaker wall 
hydrants, hose bibbs, frost 
resistant, automatic drain- 
ing type 



Backflow preventer for 
Carbonated Beverage Dis- 
pensers (two independent ; 
[check valves with a vent to i 
the atmosphere) 

Spill-Resistant Pressure 
Vacuum Breaker (single 
check valve with air inlet 
vent and mean s of (lei d 
testing) 

Double Check Valve Back- j 
flow Prevention Assembly \ 
(two independent check 
valves and means of field 
testing) 



Double Check Detector 
Fire Protection Backflow 
Prevention Assembly (two 
independent check valves 
with a parallel detector 
assembly consisting of a 
water meter and a double 
check valve backflow pre- 
vention assembly and 
means of field testing) 



TABLE 603.2 

BACKFLOW PREVENTION DEVICES, ASSEMBLIES, AND METHODS 
degr'ee''of'hazard 



APPLICABLE 
STANDARDS 



ASMP 
Al 12.1.2 

ASMh" 
Al 12.1.3 



POLLUTION 
(LOW HAZARD) 



CONTAMINATION 
(HIGH HAZARD) 



BACK- 
SIPHONAGE 

X 



BACK- 
PRESSURE 



ASSE 1001 
CSA B64.I 



ASSE 1002 or 
CSA B 125.3 



ASSE 1019 or 
CSA B64.2.1.1 



ASSE 1022 



ASSE 1056 



ASSE 1015; 
A WW A C5J.0; 
CSA B64.5 or 
CSA B64.5.1 



ASSE 1 048 



BACK- 
SIPHONAGE 



BACK- 
PRESSURE 



X 



X 



X 



X 



X 



INSTALLATION 2 ' 3 



See Table 603.3.1 in this chapter. 



: Air gap fitting is a device with an inter- 
nal air gap and typical installation 
includes plumbing fixtures, appliances 
and appurtenances. The critical level shall 
not be installed below the Hood level rim. ; 

Upright position. No valve down- j 
| stream. Minimum of 6 inches or listed ! 
! distance above all downstream piping 

and flood-level rim of receptor. 4 ' 5 

Installation on gravity water closet 
flush tank and urinal tanks with the fill 
valve installed with the critical level not 
less than 1 inch above the opening of 
the overflow pipe 4,5 



; Installation includes wall hydrants and 
hose bibbs. Such devices are not for use 
under continuous pressure conditions 
(means of shutoff downstream of I 
device is prohibited). 



4,5 



Installation includes carbonated bever- 
; age machines or dispensers. These 
| devices operate under intermittent or 

continuous pressure conditions. 



i Upright position. Minimum of 12 inches 
or listed distance above all downstream 
piping and flood-level rim of receptor. 3 

Horizontal unless otherwise listed. 
I Access and clearance shall be in accor- 
dance with the manufacturer's instruc- 
tions, and not less than a 12 inch clear- 
ance at bottom for maintenance. May 
need platform/ladder for test and repair. 
Does not discharge water. 

Horizontal unless otherwise listed. 
Access and clearance shall be in accor- 
dance with the manufacturer's instruc- 
tions, and not less than a 12 inch clear- 
ance at bottom for maintenance. May 
need platform/ladder for test and repair. 
Does not discharge water. Installation 
includes a fire protection system and is 
designed to operate under continuous 
pressure conditions. 



130 



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TABLE 603.2 

BACKFLOW PREVENTION DEVICES, ASSEMBLIES, AND METHODS (continued) 

DEGREE OF HAZARD 



DEVICE, ASSEMBLY, 



OR METHOD 



APPLICABLE 
STANDARDS 



POLLUTION 
(LOW HAZARD) 
BACK- BACK- 
SIPHONAGE PRESSURE 



CONTAMINATION 
(HIGH HAZARD) 
BACK- BACK- 
SIPHONAGE PRESSURE 



X 



ASSE 1013; 
AWWAC5 11; 
CSA B64.4 or 
CSAB64.4.1 



: Pressure Vacuum 

Breaker Back How 

Prevention Assembly 1 
I (loaded air inlet ASSE 1 020 or 

valve, internally j CSA B64.1 .2 

loaded check valve 
land means of field 

testing) 

! Reduced Pressure 
Principle Backllow 
Prevention Assembly 
| (two independently 
i acting loaded check 
I valves, a differential 
! pressure relief valve 
and means of field 
; testing) 

j Reduced Pressure 
Detector Fire Protec- 
I tion Backflow Preven- 
tion Assembly (two 
I independently acting 
| loaded check valves, a 
differential pressure 

relief val ve, with a < w-r, ^ ^ 

parallel detector 
j assembly consisting of I 
i a water meter and a 
reduced-pressure prin- i 
| ciple backllow pre- 
vention assembly, and 
means of field testing) | 

For SI units: I inch = 25.4 mm 
Notes: 

See description of devices and assemblies in this chapter. 
" Installation in pit or vault requires previous approval by the Authority Having Jurisdiction. 

3 Refer to general and specific requirement for installation. 

4 Not to be subjected to operating pressure for more than 12 hours in a 24 hour period. 
For deck-mounted and equipment-mounted vacuum breaker, see Section 603.5. 14. 



ASSE 1047 



INSTALLATION 



|2,3 



j Upright position. May have valves 
downstream. Minimum of 12 inches 
above all downstream piping and 

| flood-level rim of receptor. May dis- 
charge water. 



Horizontal unless otherwise listed, 
i Access and clearance shall be in accor- 
dance with the manufacturer's instruc- 
j tions, and not less than a 12 inch clear- 
ance at bottom for maintenance. May 
need platform/ladder for test and 
repair. May discharge water. 



; Horizontal unless otherwise listed. 
Access and clearance shall be in accor- 
I dance with the manufacturer's instruc- 
tions, and not less than a 12 inch clear- 
ance at bottom for maintenance. May 
need platform/ladder for test and 
repair. May discharge water, Installa- 
tion includes a fire protection system 
: and is designed to operate under con- 
tinuous pressure conditions. 



603.3.5 Pressure Vacuum Breaker Backllow Pre- 
vention Assembly (PVB). A pressure vacuum breaker 
backflow prevention assembly consists of a loaded air 
inlet valve, an internally loaded check valve, two prop- 
erly located test cocks, and two isolation valves. This 
device shall be permitted to be installed indoors where 
provisions for spillage are provided. 

603.3.6 Spill-Resistant Pressure Vacuum Breaker 
(SVB). A pressure-type vacuum breaker backflow pre- 
vention assembly consists of one check valve force- 
loaded closed and an air inlet vent valve force-loaded 
open to atmosphere, positioned downstream of the check 
valve, and located between and including two tightly 
closing shutoff valves and test cocks. 

603.3.7 Reduced-Pressure Principle Backflow Pre- 
vention Assembly (RP). A reduced-pressure principle 



backflow prevention assembly consists of two indepen- 
dently acting internally loaded check valves, a differ- 
ential pressure-relief valve, four properly located test 
cocks, and two isolation valves. 

603.3.8 Double Check Detector Fire Protection Back- 
flow Prevention Assembly. A double check valve 
backflow prevention assembly with a parallel detector 
assembly consisting of a water meter and a double check 
valve backflow prevention assembly (DC). 

603.3.9 Reduced Pressure Detector Fire Protection 
Backflow Prevention Assembly. A reduced- pressure 
principle backflow prevention assembly with a parallel 
detector assembly consisting of a water meter and a 
reduced-pressure principle backflow prevention assem- 
bly (RP). 



2013 CALIFORNIA PLUMBING CODE 



131 



WATER SUPPLY AND DISTRIBUTION 



FIXTURES 



TABLE 603.3.1 
MINIMUM AIR GAPS FOR WATER DISTRIBUTION 4 

WHERE NOT AFFECTED BY SIDEWALLS 1 
(inches) 



Effective openings 1 not greater lhan '/: of an 
inch in diameter 

Effective openings ' not greater than >'4 of an 
inch in diameter 

Effective openings' not greater than 1 inch 
in diameter 

i Effective openings' greater than I inch in 
diameter 



1 



V/2 



WHERE AFFECTED BY SIDEWALLS 2 
(inches) 

2'4 



Two times diameter of effective opening 



Three times diameter of effective opening 



For SI units: 1 inch = 25.4 mm 
Notes: 

1 Sidewalls, ribs, or similar obstructions do not affect air gaps where spaced from the inside edge of the spout opening a distance exceeding three times the 
diameter of the effective opening for a single wall, or a distance exceeding four times the effective opening for two intersecting walls. 

Vertical walls, ribs, or similar obstructions extending from the water surface to or above the horizontal plane of the spout opening other than specified in 
Footnote 1 above. The effect of three or more such vertical walls or ribs has not been determined. I n such cases, the air gap shal l be measured from the top 
of the wall. 

J The effective opening shall be the minimum cross-sectional area at the seat of the control valve or the supply pipe or tubing that feeds the device or outlet. 
Where two or more lines supply one outlet, the effective opening shall be the sum of the cross-sectional areas of the individual supply lines or the area of 
the single outlet, whichever is smaller. 

4 Air gaps less than I inch (25.4 mm) shall be approved as a permanent part of a listed assembly that has been tested under actual backflow conditions with 
vacuums of to 25 inches of mercury (85 kPa). 



603.4 General Requirements. Assemblies shall comply 
with listed standards and be acceptable to the Authority 
Having jurisdiction, with jurisdiction over the selection and 
installation of backflow prevention assemblies. 

603.4.1 Backflow Prevention Valve. Where more 
than one backflow prevention valve is installed on a 
single premise, and the valves are installed in one loca- 
tion, each separate valve shall be permanently identi- 
fied by the permittee in a manner satisfactory to the 
Authority Having Jurisdiction. 

603.4.2 Testing. The premise owner or responsible 
person shall have the backflow prevention assembly 
tested by a certified backflow assembly tester at the 
time of installation, repair, or relocation and not less 
than on an annual schedule thereafter, or more often 
where required by the Authority Having Jurisdiction. 
The periodic testing shall be performed in accordance 
with the procedures referenced in Table 1401.1 by a 
tester qualified in accordance with those standards. 

603.4.3 Access and Clearance. Access and clearance 
shall be provided for the required testing, maintenance, 
and repair. Access and clearance shall be in accordance 
with the manufacturer's instructions, and not less than 
12 inches (305 mm) between the lowest portion of the 
assembly and grade, floor, or platform. Installations 
elevated that exceed 5 feet (1524 mm) above the floor 
or grade shall be provided with a permanent platform 
capable of supporting a tester or maintenance person. 

603.4.4 Connections. Direct connections between 
potable water piping and sewer-connected wastes shall 
not be permitted to exist under any condition with or 
without backflow protection. Where potable water is 
discharged to the drainage system, it shall be by means 



of an approved air gap of two pipe diameters of the sup- 
ply inlet, but in no case shall the gap be less than 1 
inch (25.4 mm). Connection shall be permitted to be 
made to the inlet side of a trap provided that an 
approved vacuum breaker is installed not less than 6 
inches (152 mm), or the distance according to the 
device's listing, above the flood-level rim of such 
trapped fixture, so that at no time will such device be 
subjected to backpressure. 

603.4.5 Hot Water Backflow Preventers. Backflow 
preventers for hot water exceeding 1 10°F (43°C) shall 
be a type designed to operate at temperatures exceed- 
ing 110°F (43°C) without rendering a portion of the 
assembly in opera ti ve . 

603.4.6 Integral Backflow Preventers. Fixtures, 
appliances, or appurtenances with integral backflow 
preventers or integral air gaps manufactured as a unit 
shall be installed in accordance with their listing 
requirements and the manufacturer's installation 
instructions. 

603.4.7 Freeze Protection. In cold climate areas, 
backflow assemblies and devices shall be protected 
from freezing with an outdoor enclosure or by a 
method acceptable to the Authority Having jurisdic- 
tion. 

603.4.8 Drain Lines. Drain lines serving backflow 
devices or assemblies shall be sized in accordance with 
the discharge rates of the manufacturer's flow charts of 
such devices or assemblies. 

603.4.9 Prohibited Locations. Backflow prevention 
devices with atmospheric vents or ports shall not be 
installed in pits, underground, or submerged locations. 



132 



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603.5 Specific Requirements. 

603.5.1 Atmospheric Vacuum Breaker. Water closet 
and urinal flushometer valves shall be protected 
against backflow by an approved backflow prevention 
assembly, device, or method. Where the valves are 
equipped with an atmospheric vacuum breaker, the 
vacuum breaker shall be installed on the discharge side 
of the flushometer valve with the critical level not less 
than 6 inches (152 mm), or the distance according to 
its listing, above the overflow rim of a water closet 
bowl or the highest part of a urinal. 

603.5.2 BaLlcock. Water closet and urinal tanks shall 
be equipped with a ballcock. The ballcock shall be 
installed with the critical level not less than 1 inch 
(25.4 mm) above the full opening of the overflow pipe. 
In cases where the ballcock has no hush tube, the bot- 
tom of the water supply inlet shall be installed 1 inch 
(25.4 mm) above the full opening of the overflow pipe. 

603.5.3 Backflow Prevention. Water closet flushome- 
ter tanks shall be protected against backflow by an 
approved backflow prevention assembly, device, or 
method. 

603.5.4 Heat Exchangers. Heat exchangers used for 
heat transfer, heat recovery, or solar heating shall pro- 
tect the potable water system from being contaminated 
by the heat-transfer medium. Single-wall heat 
exchangers used in indirect-fired water heaters shall 
meet the requirements of Section 505.4.1. Double-wall 
heat exchangers shall separate the potable water from 
the heat-transfer medium by providing a space between 
the two walls that are vented to the atmosphere. 

603.5.5 Water Supply Inlets. Water supply inlets to 
tanks, vats, sumps, swimming pools, and other recep- 
tors shall be protected by one of the following means: 

( 1 ) An approved air gap. 

(2) A listed vacuum breaker installed on the discharge 
side of the last valve with the critical level not less 
than 6 inches (152 mm) or in accordance with its 
listing. 

(3) A backflow preventer suitable for the contamina- 
tion or pollution, installed in accordance with the 
requirements for that type of device or assembly 
as set forth in this chapter. 

603.5.6 Protection from Lawn Sprinklers and Irri- 
gation Systems. Potable water supplies to systems 
having no pumps or connections for pumping equip- 
ment, and no chemical injection or provisions for 
chemical injection, shall be protected from backflow 
by one of the following dev ices: 

( 1 ) Atmospheric vacuum breaker (AVB) 

(2) Pressure vacuum breaker backflow prevention 
assembly (PVB) 

(3) Spill-resistant pressure vacuum breaker (SVB) 

(4) Reduced-pressure principle backflow prevention 
assembly (RP) 



603.5.6.1 Systems with Pumps. Where sprinkler 
and irrigation systems have pumps, connections 
for pumping equipment, or auxiliary air tanks, or 
are otherwise capable of creating backpressure, the 
potable water supply shall be protected by the fol- 
lowing type of device where the backflow device 
is located upstream from the source of backpres- 
sure: 

(1) Reduced-pressure principle backflow preven- 
tion assembly (RP) 

603.5.6.2 Systems with Backflow Devices. 
Where systems have a backflow device installed 
downstream from a potable water supply pump or 
a potable water supply pump connection, the 
device shall be one of the fol lowing: 

( 1 ) Atmospheric vacuum breaker (A VB) 

(2) Pressure vacuum breaker backflow prevention 
assembly (PVB) 

(3) Spill -resi stan t pressure vacuum breaker 
(SVB) 

(4) Reduced-pressure principle backflow preven- 
tion assembly (RP) 

603.5.6.3 Systems with Chemical Injectors. 
Where systems include a chemical injector or pro- 
visions for chemical injection, the potable water 
supply shall be protected by the following: 

(1) Reduced-pressure principle backflow preven- 
tion assembly (RP) 

603.5.7 Outlets with Hose Attachments. Potable 
water outlets with hose attachments, other than water 
heater drains, boiler drains, and clothes washer connec- 
tions, shall be protected by a nonremovable hose bibb- 
type backflow preventer, a nonremovable hose bibb- 
type vacuum breaker, or by an atmospheric vacuum 
breaker installed not less than 6 inches (152 mm) 
above the highest point of usage located on the dis- 
charge side of the last valve. In climates where freez- 
ing temperatures occur, a listed self-draining frost- 
proof hose bibb with an integral backflow preventer or 
vacuum breaker shall be used. 

603.5.8 Water-Cooled Equipment. Water-cooled 
compressors, degreasers, or other water-cooled equip- 
ment shall be protected by a backflow preventer 
installed in accordance with the requirements of this 
chapter. Water-cooled equipment that produces back- 
pressure shall be equipped with the appropriate protec- 
tion. 

603.5.9 Aspirators. Water inlets to water-supplied 
aspirators shall be equipped with a vacuum breaker 
installed in accordance with its listing requirements 
and this chapter. The discharge shall drain through an 
air gap. Where the tailpiece of a fixture to recei ve the 
discharge of an aspirator is used, the air gap shall be 
located above the flood-level rim of the fixture. 



2013 CALIFORNIA PLUMBING CODE 



133 



WATER SUPPLY AND DISTRIBUTION 



603.5.10 Steam or Hot Water Boilers. Potable water 
connections to steam or hot water boilers shall be pro- 
tected from backflow by a double check valve back- 
flow prevention assembly or reduced pressure principle 
backflow prevention assembly in accordance with 
Table 603.2. Where chemicals are introduced into the 
system a reduced pressure principle backflow preven- 
tion assembly shall be provided in accordance with 
Table 603.2, 

603.5.1.1 Nonpotable Water Piping. In cases where it 
is impractical to correct individual cross-connections 
on the domestic waterline, the line supplying such out- 
lets shall be considered a nonpotable water line. No 
drinking or domestic water outlets shall be connected 
to the nonpotable water! ine. Where possible, portions 
of the nonpotable waterline shall be exposed, and 
exposed portions shall be properly identified in a man- 
ner satisfactory to the Authority Having Jurisdiction. 
Each outlet on the nonpotable waterline that is permit- 
ted to be used for drinking or domestic purposes shall 
be posted: "CAUTION: NONPOTABLE WATER, DO 
NOT DRINK." 

fHCD 1 & HCD 2] An international symbol of a glass 
in a circle with a slash through it shall be provided 
similar to that shown in Figure 601 . 

603.5.12 Beverage Dispensers. Potable water supply 
to beverage dispensers, carbonated beverage dis- 
pensers, or coffee machines shall be protected by an air 
gap or a vented backflow preventer in accordance with 
ASSE 1022. For carbonated beverage dispensers, pip- 
ing material installed downstream of the backflow pre- 
venter shall not be affected by carbon dioxide gas. 

603.5.13 Prohibited Location. Backflow preventers 
shall not be located in an area containing fumes that 
are toxic, poisonous, or corrosive. 

603.5.14 Deck-Mounted and Equipment-Mounted 
Vacuum Breakers. Deck-mounted or equipment- 
mounted vacuum breakers shall be installed in accor- 
dance with their listing and the manufacturer's installa- 
tion instructions, with the critical level not less than 1 
inch (25.4 mm) above the flood-level rim. 

603.5.1 5 Protection from Fire Systems. 

Note: Fire Protection Systems has not been adopted by 
the State Fire Marshal. This section cannot be adopted 
or enforced pursuant to California Health and Safety 
Code 13 1 14. 7(a), which is being cited for reference. 
California Health and Safety Code 131 14.7 

(a) For the purposes of this section the following are 
definitions of class I and class 11 systems: 

(1) American Water Works Association 
[A. W. W.AJ Manual No. M-14 class 1 - Auto- 
matic fire sprinkler systems with direct con- 
nection from public water mains only; no 
pumps, tanks, or reservoirs; no physical con- 
nection from other water supplies; no 
antifreeze or additives of any kind; and all 
sprinkler drains discharging to the atmo- 
sphere or other safe outlets. 



(2) American Water Works Association 
[A. W. W.AJ Manual No. M-14 class 2 - Auto- 
matic fire sprinkler systems which are the 
same as class 1, except that booster pumps 
may be installed in the connections from the 
street mains. 

(b) A utomatic fire sprinkler systems described in sub- 
division (a) shall not require any backflow protec- 
tion equipment at the service connection other 
than required by standards for those systems con- 
tained in the publication of the National Fire Pro- 
tection Association en titled "Installation of Sprin- 
kler Systems" [NFPA Pamphlet No, 13, 1980 edi- 
tion] 

603.5.16 Health Care or Laboratory Areas. Vacuum 
breakers for washer-hose bedpans shall be located not 
less than 5 feet (1524 mm) above the floor. Hose con- 
nections in health care or laboratory areas shall be not 
less than 6 feet (1829 mm) above the floor. 

603.5.17 Special Equipment. Portable cleaning equip- 
ment, dental vacuum pumps, and chemical dispensers 
shall be protected from backflow by an air gap, an 
atmospheric vacuum breaker, a spill-resistant vacuum 
breaker, or a reduced pressure principle backflow pre- 
venter. 

603.5.18 Potable Water Outlets and Valves. Potable 
water outlets, freeze-proof yard hydrants, combination 
stop-and- waste valves, or other fixtures that incorpo- 
rate a stop and waste feature that drains into the ground 
shall not be installed underground. 

603.5.19 Pure Water Process Systems. The water 
supply to a pure water process system, such as dialysis 
water systems, semiconductor washing systems, and 
similar process piping systems, shall be protected from 
backpressure and backsiphonage by a reduced-pressure 
principle backflow preventer. 

603.5.19.1 Dialysis Water Systems. The individ- 
ual connections of the dialysis related equipment 
to the dialysis pure water system shall not require 
additional backflow protection. 

603.5.20 Plumbing Fixture Fittings. Plumbing fixture 
fittings with integral backflow protection shall comply 
with ASME A1 12. 18. 1/CSA B 125.1. 

603.5.21 Swimming Pools, Spas, and Hot Tubs. 
Potable water supply to swimming pools, spas, and hot 
tubs shall be protected by an air gap or a reduced pres- 
sure principle backflow preventer in accordance with 
the following: 

(1) The unit is equipped with a submerged fill line. 

(2) The potable water supply is directly connected to 
the unit circulation system. 

604.0 Materials. 

604.1 Pipe, Tube, and Fittings. Pipe, tube, fittings, solvent 
cements, thread sealants, solders, and flux used in potable 



134 



2013 CALIFORNIA PLUMBING CODE 



water systems intended to supply drinking water shall be in 
| accordance with the requirements of NSF 61. 

Materials used in the water supply system, except 
valves and similar devices, shall be of a like material, 
except where otherwise approved by the Authority Having 
Jurisdiction. 

Materials for building water piping and building sup- 
ply piping shall comply with the applicable standards refer- 
enced in Table 604. 1 . 

|| Exception; [OSHPD 1, 2, 3 & 4] Use of CPVC is not per- 
mitted for applications under authority of the Office of 
Statewide Health Planning and Development. 

604. 1. 1 Local Authority to Approve CP VC Pipe 
Within Residential Buildings Under Specified Condi- 
tions. [HCD I & HCD 2] The local responsible build- 
ing official of any city, county, or city and county, shall 
authorize by permit the use of CPVC for hot and cold 
water distribution systems within the interior of resi- 
dential buildings provided all of the following condi- 
tions are satisfied: 

(a) Permit Conditions. Any building permit issued 
pursuant to Section 604 A A shall be conditioned 
on compliance with the mitigation measures set 
forth in this section. 

(b) Approved Materials. Only CPVC plumbing mate- 
rial listed as an approved material and installed in 
accordance with this code may be used. 

(c) Installation and Use, Any installation and use of 
CPVC plumbing material pursuant to this section 
shall comply with all applicable requirements of 
this code and Section 1.2 of Appendix I of this 
code, Installation Standard for CPVC Solvent 
Cemented Hot and Cold Water Distribution Sys- 

|| terns, IAPMO IS 20-2010. 

(d) Certification of Compliance. Prior to issuing a 
building permit pursuant to Section 604.1 A, the 
building official shall require as part of the per- 
mitting process that the contractor, or the appro- 
priate plumbing subcontractors, provide written 
certification: (1) that is required in subdivision 
(e), and (2) that he or she will comply with the 
flushing procedures and worker safety measures 
set forth in Section 1.2 of Appendix I of th is code, 
Installation Standard for CPVC Solvent Cemented 

|j Hot and Cold Water Distribution Systems, 

t (IAPMO IS 20-2010). 

(e) Worker Safety. Any contractor applying for a 
building permit that includes the use of CPVC 
plumbing materials authorized pursuant to this 
section shall include in the permit application a 
signed written certification stating that: 

(1) They are aware of the health and safety haz- 
ards associated with CPVC plumbing instal- 
lations; 

(2) They have included in their Injury and Illness 
Prevention Plan the hazards associated with 
CPVC plumbing pipe installations; and 



WATER SUPPLY AND DISTRIBUTION 



(3) The worker safety training elements of their 
Injury and Illness Prevention Plan meet the 
Department of Industrial Relation 's guidelines. 

(f) Findings of Compliance. The building official 
shall not give final permit approval of any CPVC 
plumbing materials installed pursuant to Section 
604 A A unless he or she finds that the material has 
been installed in compliance with the require- 
ments of this code and that the installer has com- 
plied with the requirements in Section 1.2.1 of 
Appendix I of this code, Installation Standards for 
CPVC Solvent Cemented Hot and Cold Water Dis- 
tribution Systems, (IAPMO IS 20-201 0). \\ 

(g) Penalties. Any contractor or subcontractor found 
to have failed to comply with the flushing require- 
ments of Section 1.2.1 of Appendix I of this code or 
the ventilation, and glove requirements of Section 
1.2.2 of Appendix I of this code, Installation Stan- 
dards for CPVC Solvent Cemented Hot and Cold 
Water Distribution Systems, (IAPMO IS 20-2010) \\ 
shall be subject to the penalties in Health and 
Safety Code, Division 13, Part 1.5, Chapter 6 
(Section 17995 et seq.). In addition, if during the 
conduct of any building inspection the building 
official finds that the ventilation and glove 
requirements of Section 2. 7.1 of Appendix I of this || 
code, "Special Requirements for CPVC Installa- 
tion within Residential Buildings, " are being vio- 
lated, such building officials shall cite the contrac- 
tor or subcontractor for that violation. 

604.1.2 PEX. All installations of PEX pipe where it is 
the initial plumbing piping installed in new construc- 
tion shall be flushed twice over a period of at least one 
week. The pipe system shall be first flushed for at least 
10 minutes and then filled and allowed to stand for no 
less than 1 week, after which all the branches of the 
pipe system must be flushed long enough to fully empty 
the contained volume. This provision shall not apply to 
the installation of PEX pipe where it replaces an exist- 
ing pipe system of any materia/. 

(1) At the time of fill, each fixture shall have a remov- 
able tag applied stating: 

(a) "This new plumbing system was first filled 

and flushed on (date) by 

(name). The State of California 

requires that the system be flushed after 
standing at least one week after the fill date 
specified above. If this system is used earlier 
than one week after the fill date, the water 
must be allowed to run for at least two min- 
utes prior to use for human consumption. This 
tag may not be removed prior to the comple- 
tion of the required second flushing, except by 
the building owner or occupant " 

(2) Prior to issuing a building permit to install PEX 
pipe, the building official shall require as part of 
the permitting process that the contractor, or the 
appropriate plumbing subcontractors, provide 



2013 CALIFORNIA PLUMBING CODE 



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135 



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TABLE 604.1 

MATERIALS FOR BUILDING SUPPLY AND WATER DISTRIBUTION PIPING AND FITTINGS 



MATERIAL 


BUILDING 
SUPPLY PIPE 
AND FITTINGS 

1 


WATER 
DISTRIBUTION 
PIPE AND 
FITTINGS 


REFERENCED 
STANDARD(S) PIPE 


REFERENCED 
STANDARD(S) FITTINGS 


Asbestos-Cement 


X 1 




ASTM C 296 


— 


Brass 


X 


X 


ASTM B 43, ASTM B 135 




Copper 


X 


X 


ASTM B 42, ASTM B 75, 
ASTM B 88, ASTM B 251, 
ASTM B 302, ASTM B 447 


ASME B16.15, ASME B16.18, 
ASME B16.22, ASME B 16.26 


CPVC 


X 


X 


ASTM D 2846, ASTM F 441, 
ASTM F 442 


ASTM D 2846, ASTM F 437, 
ASTM F 438, ASTM F 439, 
ASTM F 1970 


Ductile-Iron 


X 


x 


AWWA C151 


ASME B16.4, AWWA CI 10, 
AWWA CI 53 


Galvanized Steel 


X 


X 


ASTM A 53 




Malleable Iron 


X 


X 




ASME B16.3 


PE 


X 1 




ASTM D 2239, ASTM D 2737, 
ASTM D 3035, AWWA C901, 
CSAB137.1 


ASTM D 2609, ASTM D 2683, 
ASTM D 3261, ASTM F 1055, 
CSAB137.1 


PE-AL-PE 


X 


X 


ASTM F 1282, CSAB137.9 


ASTM F 1282, ASTM F 1974, 
CSA B137.9 


PE-RT 


X 


X 


ASTM F 2769 


ASTM F 1807, ASTM F 2098, 
ASTM F 2159; ASTM F 2735, 
ASTM F 2769 


PEX Z 3 


X 


X 


ASTM F 876, ASTM F 877, 
CSAB 137.5, AWWA C904 1 


ASSE 1061, ASTM F 877, 
ASTM F 1807, ASTM F 1960, 
ASTM F 1961, ASTM F 2080, 
AS I M b 2159, AS 1 M b 2735, 
CSAB137.5 


PEX-AL-PEX* 


X 


X 


ASTM F 1281,CSAB137.10, 
ASTM F 2262 


ASTM F 1281, ASTM F 1974, 
ASTM F 2434, CSAB137.10 


PP 


X 


X 


ASTM F 2389, CSAB137.il 


ASTM F 2389, CSAB137.il 


PVC 


X 1 




ASTM D 1785, ASTM D 2241, 
AWWA C900 


ASTM D 2464, ASTM D 2466, 
ASTM D 2467, ASTM F 1970 


Stainless Steel 


X 


X 


ASTM A 269, ASTM A 312 





For Building Supply or cold-water applications. 

When PEX tubing is placed in soil and is used in potable water systems intended to supply drinking water to fixtures or appliances, the tubing or piping 
shall be sleeved with a material approved for potable water use in soil or other material that is impermeable to solvents or petroleum products. 
PEX tubing shall meet or exceed the requirements of ASTM F8 76-08 or an equivalent or more stringent standard when used in continuously recirculating 
hot water systems and the PEX tubing is exposed to the hot water 100% of the time. 

/For BSC, DSA-SS, DSA-SS/CC & HCDJ The use of PEX-AL-PEX in potable water supply systems is not adopted. 



written certification that he or she will comply 
with the flushing procedures set forth in the code. 

(3) The building official shall not give final permit 
approval of any PEX plumbing installation unless 
he or she finds that the material has been installed 
in compliance with the requirements of the code, 
including the requirements to flush and tag the 
systems. 

(4) Any contractor or subcontractor found to have 
failed to comply with the PEX flushing require- 
ments shall be subject to the penalties in Health 
and Safety Code, Division 13, Part 1.5, Chapter 6 
(Section 17995, et seq.). 



604.2 Copper Tube. Copper tube for water piping shall 
have a weight of not less than Type L. 

Exception: Type M copper tubing shall be permitted to be 
used for water piping where piping is aboveground in, or 
on, a building or underground outside of structures. 

604.3 Hard-Drawn Copper Tubing. Hard-drawn copper 
tubing for water supply and distribution in addition to the 
required incised marking, shall be marked in accordance 
with ASTM B 88. The colors shall be: Type K, green; Type | 
L, blue; and Type M, red. 

604.4 Flexible Copper Connectors. Listed flexible copper 
water connectors shall be installed in readily accessible 
locations, unless otherwise listed. 



136 



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WATER SUPPLY AND DISTRIBUTION 



604.5 Cast-Iron Fittings. Cast-iron fittings up to and 
including 2 inches (50 mm) in size, where used in connec- 
tion with potable water piping, shall be galvanized. 

604.6 Malleable Iron Fittings. Malleable iron water fit- 
tings shall be galvanized. 

604.7 Previously Used Piping and Tubing. Piping and 
tubing that has previously been used for a purpose other 
than for potable water systems shall not be used. 

604.8 Epoxy Coating. Epoxy coating used on existing 
building supply or water distribution piping systems shall 
be in accordance with NSF 61 and AWWA C210. 

604.9 Plastic Materials. Approved plastic materials shall 
| be permitted to be used in building supply piping, provided 
| that where metal building supply piping is used for electri- 
cal grounding purposes, replacement piping therefore shall 
be of like materials. 

Exception: Where a grounding system acceptable to the 
Authority Having Jurisdiction is installed, inspected, and 
approved, metallic pipe shall be permitted to be replaced 
| with no.nmetall.ic pipe. Plastic materials for building supply 
piping outside underground shall have a blue insulated cop- 
per tracer wire or other approved conductor installed adja- 
cent to the piping. Access shall be provided to the tracer 
wire or the tracer wire shall terminate aboveground at each 
end of the nonmetallic piping. The tracer wire size shall be 
not less than 18 AWG and the insulation type shall be suit- 
able for direct burial. 

604.10 Solder. Solder shall comply with the requirements 
of Section 605.3.4. 

604.11 Lead Content Water pipe and fittings with a lead 
content which exceeds 8 percent shall be prohibited in pip- 
ing systems used to convey potable water. 

Note: On or after January I, 2010, see Section 116875 of 
the Health and Safety Code for the lead content of pipes, 
pipe or plumbing fittings, or fixtures intended to convey or 
dispense water for human consumption. 

604.12 Flexible Corrugated Connectors. Flexible corru- 
gated connectors of copper or stainless steel shall be lim- 
ited to the following connector lengths: 

(1) Fixture Connectors - 30 inches (762 mm) 

(2) Washing Machine Connectors - 72 inches (1 829 mm) 

(3) Dishwasher and Icemaker Connectors - 120 inches 
(3048 mm) 

604.13 Water Heater Connectors. Flexible metallic water 
heater connectors or reinforced flexible water heater con- 
nectors connecting water heating to the piping system shall 
be in accordance with the applicable standards referenced 
in Table 1401.1. Copper or stainless steel flexible connec- 
tors shall not exceed 24 inches (610 mm). PEX, PEX-AL- 
PEX, PE-AL-PE, or PE-RT tubing shall not be installed 
within the first 18 inches (457 mm) of piping connected to 
a water heater. 

[ESQ BCD 1 & HCD 2] PEX-AL-PEX is not adopted for 
use in potable water supply and distribution systems. 

I 605.0 Joints and Connections. 

605.1 Asbestos-Cement Pipe and Joints. Joining methods 
| for asbestos-cement pipe and fittings shall be installed in 



accordance with the manufacturer's installation instructions 

and shall comply with Section 605. 1 . 1 . 

605.1.1 Mechanical Joints. Mechanical joints shall be 
of the same composition as the pipe and sealed with an 
approved elastomeric gasket or joined by a listed com- 
pression type coupling. Elastomeric gaskets shall com- 
ply with ASTM D 1869. The coupling grooves, pipe 
ends, and elastomeric gaskets shall be cleaned. Elas- 
tomeric gaskets shall be positioned in the grooves. 
Lubricant recommended for potable water application 
by the pipe manufacturer shall be applied to the 
machined end of the pipe. Lubricant shall not be 
applied to the elastomeric gasket or groove, unless 
specifically recommended by the manufacturer. 

605.2 Brass Pipe and Joints. Joining methods for brass 
pipe and fittings shall be installed in accordance with the 
manufacturer's installation instructions and shall comply 
with Section 605.2.1 through Section 605.2.3. 

605.2.1 Brazed Joints. Brazed joints between brass 
pipe and fittings shall be made with brazing alloys hav- 
ing a liquid temperature above 1000°F (538°C). The 
joint surfaces to be brazed shall be cleaned bright by 
either manual or mechanical means. Pipe shall be cut 
square and reamed to full inside diameter. Brazing flux 
shall be applied to the joint surfaces where required by 
manufacturer's recommendation. Brazing filler metal in 
accordance with AWS A5.8 shall be applied at the point 
where the pipe or tubing enters the socket of the fitting. 

605.2.2 Mechanical Joints. Mechanical joints shall be 
of the compression, pressed, or grooved type using an 
approved elastomeric gasket to form a seal. 

605.2.3 Threaded Joints. Threaded joints shall be 
made with pipe threads in accordance with ASME 
B 1.20.1. Thread sealant tape or compound shall be 
applied only on male threads, and such material shall 
be of approved types, insoluble in water, and nontoxic. 

605.3 Copper Pipe, Tubing, and Joints. Joining methods 
for copper pipe, tubing, and fittings shall be installed in accor- 
dance with the manufacturer's installation instructions and 
shall comply with Section 605.3.1 through Section 605.3.5. 

605.3.1 Brazed Joints. Brazed joints between copper 
pipe or tubing and fittings shall be made with brazing 
alloys having a liquid temperature above 1000°F 
(538°C). The joint surfaces to be brazed shall be 
cleaned bright by either manual or mechanical means. 
Tubing shall be cut square and reamed to full inside 
diameter. Brazing flux shall be applied to the joint sur- 
faces where required by manufacturer's recommenda- 
tion. Brazing filler metal in accordance with AWS 
A5.8 shall be applied at the point where the pipe or 
tubing enters the socket of the fitting. 

605.3.2 Flared Joints. Flared joints for soft copper 
water tubing shall be made with fittings that are in 
accordance with the applicable standards referenced in 
Table 604. 1 . Pipe or tubing shall be cut square using an 
appropriate tubing cutter. The tubing shall be reamed 
to full inside diameter, resized to round, and expanded 
with a proper flaring tool. 



2013 CALIFORNIA PLUMBING CODE 



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WATER SUPPLY AND DISTRIBUTION 



605.3.3 Mechanical Joints. Mechanical joints shall 
include, but are not limited to, compression, flanged, 
grooved, pressed, and push fit fittings. 

605.3.3.1 Mechanically Formed Tee Fittings. 
Mechanically formed tee fittings shall have 
extracted collars that shall be formed in a continu- 
ous operation consisting of drill ing a pilot hole and 
drawing out the pipe or tube surface to form a collar 
having a height not less than three times the thick- 
ness of the branch tube wall. The branch pipe or 
lube shall be notched to conform to the inner curve 
of the run pipe or tube and shall have two dimple 
depth slops to ensure that penetration of the branch 
pipe or tube into the collar is of a depth for brazing 
and that the branch pipe or tube does not obstruct 
the flow in the main line pipe or tube. Dimple depth 
stops shall be in line with the run of the pipe or 
tube. The second dimple shall be % of an inch (6.4 
mm) above the first and shall serve as a visual point 
of inspection. Fittings and joints shall be made by 
brazing. Soldered joints shall not be permitted. 

605.3.3.2 J Not permitted for OSHPD ./, 2, 3, & 4/ 
Pressed Fittings. Pressed fittings for copper pipe or 
tubing shall have an elastomeric O-ring that forms 
the joint. The pipe or tubing shall be fully inserted 
into the fitting, and the pipe or tubing marked at the 
shoulder of the fitting. Pipe or tubing shall be cut 
square, chamfered, and reamed to full inside diame- 
ter. The fitting alignment shall be checked against 
the mark on the pipe or tubing to ensure die pipe or 
tubing is inserted into the fitting. The joint shall be 
pressed using the tool recommended by the manu- 
facturer. 

605.3.33 Push Fit Fittings. Removable and non- 
removable push fit fittings for copper tubing or 
pipe that employ quick assembly push fit connec- 
tors shah be in accordance with ASSE 1061 . Push 
fit fittings for copper pipe or tubing shall have an 
approved elastomeric O-ring that forms the joint. 
Pipe or tubing shall be cut square, chamfered, and 
reamed to full inside diameter. The tubing shall be 
fully inserted into the fitting, and the tubing 
marked at the shoulder of the fitting. The fitting 
alignment shall be checked against the mark on 
the tubing to ensure the tubing is inserted into the 
fitting and gripping mechanism has engaged on 
the pipe. 

605.3.4 Soldered Joints. Soldered joints between cop- 
per pipe or tubing and fittings shall be made in accor- 
dance with A.STM B 828 with the following sequence 
of joint preparation and operation as follows: measur- 
ing and cutting, reaming, cleaning, fluxing, assembly 
and support, heating, applying the solder, cooling and 
cleaning. Pipe or tubing shall be cut square and reamed 
to the full inside diameter including the removal of 
burrs on the outside of the pipe or tubing. Surfaces to 
be joined shall be cleaned bright by manual or mechan- 
ical means. Flux shall be applied to pipe or tubing and 



fittings and shall be in accordance with ASTM B 813, 
and shall become noncorrosive and nontoxic after sol- 
dering. Insert pipe or tubing into the base of the fitting 
and remove excess flux. Pipe or tubing and fitting shall 
be supported to ensure a uniform capillary space 
around the joint. Heat shall be applied using an air or 
fuel torch with the flame perpendicular to the pipe or 
tubing using acetylene or an LP gas. Preheating shall 
depend on the size of the joint. The flame shall be 
moved to the fitting cup and alternate between the pipe 
or tubing and fitting. Solder in accordance with ASTM 
B 32 shall be applied to the joint surfaces until capil- 
lary action draws the molten solder into the cup. Solder 
and fluxes with a lead content that exceeds 0.2 percent 
shall be prohibited in piping systems conveying 
potable water. Joint surfaces shall not be disturbed 
until cool and any remaining flux residue shall be 
cleaned. 

605.3.5 Threaded Joints. Threaded joints for copper 
pipe shall be made with pipe threads in accordance 
with ASME B 1 .20.1 . Thread sealant tape or compound 
shall be applied only on male Queads, and such mate- 
rial shall be of approved types, insoluble in water, and 
nontoxic. 

605*4 CPVC Plastic Pipe and Joints. CPVC plastic pipe 
and fitting joining methods shall be installed in accordance 
with the manufacturer's installation instructions and shall 
comply with Section 605.4.1 through Section 605.4.3. 

605.4.1 Mechanical Joints. Removable and nonre- 
movable push fit fittings that employ a quick assembly 
push fit connector shall be in accordance with ASSE 
1061. 

605.4.2 Solvent Cement Joints. Solvent cement joints 
for CPVC pipe and fittings shall be clean from dirt and 
moisture. Solvent cements in accordance with ASTM F 
493, requiring the use of a primer shall be orange in 
color. The primer shall be colored and be in accor- 
dance with ASTM F 656. Listed solvent cement in 
accordance with ASTM F 493 that does not require the 
use of primers, yellow or red in color, shal l be permit- 
ted for pipe and fittings manufactured in accordance 
with ASTM D 2846, [ A of an inch (15 mm) through 2 
inches (50 mm) in diameter. Apply primer where 
required inside the fitting and to the depth of the fitting 
on pipe. Apply liberal coat of cement to the outside 
surface of pipe to depth of fitting and inside of fitting. 
Place pipe inside fitting to forcefully bottom the pipe 
in the socket and hold together until joint is set. 

[HCD 1 & HCD 2] Low VOC One-Step Cement that 
does not require the use of primer shall be utilized with 
CP VC pipe and fittings, manufactured in accordance 
with ASTM D 2846. 

605.4.3 Threaded Joints, Threads shall comply with 
ASME Bi.20.1. A minimum of Schedule 80 shall be 
permitted to be threaded; however, the pressure rating 
shall be reduced by 50 percent. The use of molded fit- 
tings shall not result in a 50 percent reduction in the 
pressure rating of the pipe provided that the molded fit- 



138 



2013 CALIFORNIA PLUMBING CODE 



WATER SUPPLY AND DISTRIBUTION 



tings shall be fabricated so that the wall thickness of 
the material is maintained at the threads. Thread 
sealant compound that is compatible with the pipe and 
fitting, insoluble in water, and nontoxic shall be 
applied to male threads. Caution shall be used during 
assembly to prevent over tightening of the CPVC com- 
ponents once the thread sealant has been applied. 
Female CPVC threaded fittings shall be used with plas- 
tic male threads only. 

605.5 Ductile Iron Pipe and Joints. Ductile iron pipe and 
fitting joining methods shall be installed in accordance with 
the manufacturer's installation instructions and shall com- 
ply with Section 605.5.1 and Section 605.5.2. 

605.5.1 Mechanical Joints. Mechanical joints for duc- 
tile iron pipe and fittings shall consist of a bell that is 
cast integrally with the pipe or fitting and provided with 
an exterior flange having bolt holes and a socket with 
annular recesses for the sealing gasket and the plain end 
of the pipe or fitting. The elastomeric gasket shall com- 
ply with AWWA CI 1 1. Lubricant recommended for 
potable water application by the pipe manufacturer 
shall be applied to the gasket and plain end of the pipe. 

605.5.2 Push-On Joints. Push-on joints for ductile iron 
pipe and fittings shall consist of a single elastomeric gas- 
ket that shall be assembled by positioning the elastomeric 
gasket in an annular recess in the pipe or fitting socket 
and forcing the plain end of the pipe or fitting into the 
socket. The plain end shall compress the elastomeric gas- 
ket to form a positive seal and shall be designed so that 
the elastomeric gasket shall be locked in place against 
displacement. The elastomeric gasket shall comply with 
AWWA CI 1 1. Lubricant recommended for potable 
water application by the pipe manufacturer shall be 
applied to the gasket and plain end of the pipe. 

605.6 Galvanized Steel Pipe and Joints. Galvanized steel 
pipe and fitting joining methods shall be installed in accor- 
dance with the manufacturer's installation instructions and 
shall comply with Section 605.6.1 and Section 605.6.2. 

605.6.1 Mechanical Joints. Mechanical joints shall be 
made with an approved and listed elastomeric gasket. 

605.6.2 Threaded Joints. Threaded joints shall be 
made with pipe threads that are in accordance with 
ASME B 1.20.1 . Thread sealant tape or compound shall 
be applied only on male threads, and such material shall 
be of approved types, insol uble in water, and nontoxic. 

605.7 PE Plastic Pipe/Tubing and Joints. PE plastic pipe 
or tubing and fitting joining methods shall be installed in 
accordance with the manufacturer's installation instructions 
and shall comply with Section 605.7.1 and Section 605.7.2. 

605.7.1 Heat-Fusion Joints. Heat-fusion joints 
between PE pipe or tubing and fittings shall be assem- 
bled in accordance with Section 605.7.1.1 through Sec- 
tion 605.7.1.3 using butt, socket, and electro-fusion 
heat methods in accordance with ASTM D 2657. 

605.7.1.1 Butt-Fusion Joints. Butt-fusion joints 
shall be made by heating the squared ends of two 
pipes, pipe and fitting, or two fittings by holding 
ends against a heated element. The heated element 



shall be removed where the proper melt is 
obtained and joined ends shall be placed together 
with applied force. 

605.7.1.2 Electro-Fusion Joints. Electro-fusion 
joints shall be made by embedding the resistance 
wire in the fitting and supplying with a heat 
source. Pipe shall be clamped in place and power 
applied through a controlled processor. The mate- 
rial surrounding the wire shall be melted along 
with the pipe and shall provide the pressure 
required for fusion. 

605.7.1.3 Socket-Fusion Joints. Socket-fusion 
joints shall be made by simultaneously heating the 
outside surface of a pipe end and the inside of a 
fitting socket. Where the proper melt is obtained, 
the pipe and fitting shall be joined by inserting one 
into the other with applied force. The joint shall 
fuse together and remain undisturbed until cool. 

605.7.2 Mechanical Joints. Mechanical joints between 
PE pipe or tubing and fittings shall include insert and 
mechanical compression fittings that provide a pressure 
seal resistance to pullout. Joints for insert fittings shall 
be made by cutting the pipe square, using a cutter 
designed for plastic piping, and removal of sharp edges. 
Two stainless steel clamps shall be placed over the end 
of the pipe. Fittings shall be checked for proper size 
based on the diameter of the pipe. The end of pipe shall 
be placed over the barbed insert fitting, making contact 
with the fitting shoulder. Clamps shall be positioned 
equal to 180 degrees (3.14 rad) apart and shall be tight- 
ened to provide a leak tight joint. Compression type cou- 
plings and fittings shall be permitted for use in joining 
PE piping and tubing. Stiffeners that extend beyond the 
clamp or nut shall be prohibited. Bends shall be not less 
than 30 pipe diameters, or the coil radius where bending 
with the coil. Bends shall not be permitted closer than 
10 pipe diameters of a fitting or valve. Mechanical joints 
shall be designed for their intended use. 
605.8 PE-AL-PE Plastic Pipe/Tubing and Joints. PE- 
AL-PE plastic pipe or tubing and fitting joining methods 
shall be installed in accordance with the manufacturer's 
installation instructions and shall comply with Section 
605.8.1 and Section 605.8.1.1. 

605.8.1 Mechanical Joints. Mechanical joints for PE- 
AL-PE pipe or tubing and fittings shal l be either of the 
metal insert fittings with a split ring and compression 
nut or metal insert fittings with copper crimp rings. 
Metal insert lutings shall comply with ASTM F 1974. 
Crimp insert fittings shall be joined to the pipe by plac- 
ing the copper crimp ring around the outer circumfer- 
ence of the pipe, forcing the pipe material into the 
space formed by the ribs on the fitting until the pipe 
contacts the shoulder of the fitting. The crimp ring 
shall then be positioned on the pipe so the edge of the 
crimp ring is '/s of an inch (3.2 mm) to ] A of an inch (6.4 
mm) from the end of the pipe. The jaws of the crimping 
tool shall be centered over the crimp ring and tool per- 
pendicular to the barb. The jaws shall be closed around 
the crimp ring and shall not be crimped more than once. 



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605.8.1.1 Compression Joints. Compression 
joints for PE-AL-PE pipe or tubing and fittings 
shall be joined through the compression of a split 
ring, by a compression nut around the circumfer- 
ence of the pipe. The compression nut and split 
ring shall be placed around the pipe. The ribbed 
end of the fitting shall be inserted onto the pipe 
until the pipe contacts the shoulder of the fitting. 
Position and compress the split ring by tightening 
the compression nut onto the insert fitting. 

605.9 PE-RT. Polyethylene of raised temperature (PE-RT) 
tubing shall be marked with the appropriate standard desig- 
nation^) listed in Table 604.1 for which the tubing has 
been approved. PE-RT tubing shall be installed in accor- 
dance with the manufacturer's installation instructions. 

605.9.1 Fittings. Metal insert fittings, metal compres- 
sion fittings, and plastic fittings shall be manufactured 
to and marked in accordance with the standards for fit- 
tings in Table 604.1 . 

605.10 PEX Plastic Tubing and Joints. PEX plastic tub- 
ing and fitting joining methods shall be installed in accor- 
dance with the manufacturer's installation instructions and 
shall comply with Section 605.10.1 and Section 605.10.2. 
All PEX pipe installed in California must provide at least 
30-day UV protection. [OSHPD 1, 2, 3, & 4] Installation 
and use of PEX tubing shall be in accordance with manu- 
facturer's standards. PEX piping shall not be used for any 
application that would result in noncompliance with any 
provisions of the California Building Standards Code. 

605.10.1 Fittings. Fittings for PEX tubing shall comply 
with the applicable standards referenced in Table 604. 1 . 
PEX tubing in accordance with ASTM F 876 shall be 
marked with the applicable standard designation for the 
fittings speci fied for use with the tubing. Brass fittings 
used with PEX tubing shall meet or exceed NSF 14- 
2009 standards to prevent dezincification and stress 
crack corrosion. [OSHPD I, 2, 3, & 4/ Installation and 
use of PEX tubing shall be in accordance with manufac- 
turer 's standards. PEX piping shall not be used for any 
application that would result in noncompliance with any 
provisions of the California Building Standards Code. 

605.10. 2 Mechanical Joints. Mechanical joints shall 
be installed in accordance with the manufacturer's 
instal lation instructions. 

605.11 PEX-AL-PEX Plastic Tubing and Joints. PEX- 
AL-PEX plastic pipe or tubing and fitting joining methods 
shall be installed in accordance with the manufacturer's 
installation instructions and shall comply with Section 
605.1 1.1 and Section 605.1 1.1.1. 

[BSC, HCD I & HCD 2/ PEX-AL-PEX is not adopted for 
use in potable water supply and distribution systems. 

605.11.1 Mechanical Joints. Mechanical joints 
between PEX-AL-PEX tubing and fittings shall 
include mechanical and compression type fittings and 
insert fittings with a crimping ring. Insert fittings uti- 
lizing a crimping ring shall be in accordance with 
ASTM F 1974 or ASTM F 2434. Crimp joints for 
crimp insert fittings shall be joined to PEX-AL-PEX 



pipe by the compression of a crimp ring around the 
outer circumference of the pipe, forcing the pipe mate- 
rial into annular spaces formed by ribs on the fitting. 
[BSC] PEX-AL-PEX is not adopted for use in potable 
water supply and distribution systems. 

605.11.1.1 Compression Joints. Compression 
joints shall include compression insert fittings and 
shall be joined to PEX-AL-PEX pipe through the 
compression of a split ring or compression nut 
around the outer circumference of the pipe, forc- 
ing the pipe material into the annular space formed 
by the ribs on the fitting. 

[BSC] PEX-AL-PEX is not adopted for use in 
potable water supply and distribution systems. 
605.12 Polypropylene (PP) Piping and Joints. PP pipe 
and fittings shall be installed in accordance with the manu- 
facturer's installation instructions and shall comply with 
Section 605.12.1 through Section 605.12.3. 

605.12.1 Heat-Fusion Joints. Heat-fusion joints for 
polypropylene (PP) pipe and fitting joints shall be 
installed with socket-type heat-fused polypropylene fit- 
tings, fusion outlets, butt-fusion polypropylene fittings 
or pipe, or electro-fusion polypropylene fittings. Joint 
surfaces shall be clean and free from moisture. The joint 
shall be undisturbed until cool. Joints shall be made in 
accordance with ASTM F 2389 or CSA B 137. 1 1. 

605.12.2 Mechanical and Compression Sleeve 
Joints. Mechanical and compression sleeve joints shall 
be installed in accordance with the manufacturer's 
installation instructions. 

605.12.3 Threaded Joints. PP pipe shall not be 
threaded. PP transition fittings for connection to other 
piping materials shall only be threaded by use of brass 
or stainless steel inserts molded in the fitting. 

605.1.3 PVC Plastic Pipe and Joints. PVC plastic pipe and 
fitting join ing methods shall be installed in accordance with 
the manufacturer's installation instructions and shall com- 
ply with Section 605.13.1 through Section 605.13.3. 

605.13.1 Mechanical Joints. Mechanical joints shall 
be designed to provide a permanent seal and shall be of 
the mechanical or push-on joint. The mechanical joint 
shall include a pipe spigot that has a wall thickness to 
withstand without deformation or collapse; the com- 
pressive force exerted where the fitting is tightened. 
The push-on joint shall have a minimum wall thickness 
of the bell at any point between the ring and the pipe 
barrel. The elastomeric gasket shall, comply with 
ASTM D 3139, and be of such size and shape as to 
provide a compressive force against the spigot and 
socket after assembly to provide a positive seal. 

605.13.2 Solvent Cement Joints. Solvent cement 
joints for PVC pipe and fittings shall be clean from dirt 
and moisture. Pipe shall be cut square and pipe shall be 
deburred. Where surfaces to be joined are cleaned and 
tree of dirt, moisture, oil, and other foreign material, 
apply primer purple in color in accordance with ASTM 
F 656. Primer shall be applied until the surface of the 
pipe and fitting is softened. Solvent cements in accor- 



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dance with ASTM D 2564 shall be applied to all joint 
surfaces. Joints shall be made while both the inside 
socket surface and outside surface of pipe are wet with 
solvent cement. Hold joint in place and undisturbed for 
1 minute after assembly. 

[HCD 1 <& HCD 2] Plastic pipe and fittings joined 
with solvent cement shall utilize Low VOC primer (s), if 
a primer is required, and Low VOC solvent cement (s) 
as defined in Section 214. 

605.1.3.3 Threaded Joints. Threads shall comply with 
ASM'E B 1.20.1. A minimum of Schedule 80 shall be 
permitted to be threaded; however, the pressure rating 
shall be reduced by 50 percent. The use of molded fit- 
tings shall not result in a 50 percent reduction in the pres- 
sure rating of the pipe provided that the molded fittings 
shall be fabricated so that the wall thickness of the mate- 
rial is maintained at the threads. Thread sealant com- 
pound that is compatible with the pipe and fitting, insolu- 
ble in water, and nontoxic shall be applied to male 
threads. Caution shall be used during assembly to pre- 
vent over tightening of the PVC components once the 
thread sealant has been applied. Female PVC threaded 
fittings shall be used with plastic male threads only. 

605.14 Stainless Steel Pipe and Joints. Joining methods for 
stainless steel pipe and fittings shall be installed in accor- 
dance with the manufacturer's installation instructions and 
shall comply with Section 605.14.1 and Section 605.14.2. 

605.14.1 Mechanical Joints. Mechanical joints shall be 
designed for their intended use. Such joints shall include 
compression, flanged, grooved, pressed, and threaded. 

605.14.2 Welded Joints. Welded joints shall be either 
fusion or resistance welded based on the selection of 
the base metal. Chemical composition of the filler 
metal shall comply with AWS A5.9 based on the alloy 
content of the piping material . 

605.15 Slip Joints. In water piping, slip joints shall be per- 
mitted to be used only on the exposed fixture supply. 

605.16 Dielectric Unions. Dielectric unions where 
installed at points of connection where there is a dissimilar- 
ity of metals shall be in accordance with ASSE 1079. 
[HCD 1 & HCD 2, OSHPD 1, 2, 3 & 4] Dielectric unions 
shall be used at all points of connection where there is a 
dissim ilarity of meta ls. 

605.17 Joints Between Various Materials. Joints between 
various materials shall be installed in accordance with the 
manufacturer's installation instructions and shall comply 
with Section 605.17.1 through Section 605.17.3. 

605.17.1 Copper Pipe or Tubing to Threaded Pipe 
Joints. Joints from copper pipe or tubing to threaded 
pipe shall be made by the use of brass adapter, brass nip- 
ple [minimum 6 inches (152 mm)], dielectric fitting, or 
dielectric union in accordance with ASSE 1079. The 
joint between the copper pipe or tubing and the fitting 
shall be a soldered, brazed, flared, or pressed joint and 
the connection between the threaded pipe and the fitting 
shall be made with a standard pipe size threaded joint. 

605.17.2 Plastic Pipe to Other Materials. Where con- 
necting plastic pipe to other types of piping, approved 



types of adapter or transition fittings designed for the 
specific transition intended shall be used. 

605.17.3 Stainless Steel to Other Materials. Where 
connecting stainless steel pipe to other types of piping, 
mechanical joints of the compression type, dielectric 
fitting, or dielectric union in accordance with ASSE 
1079 and designed for the specific transition intended 
shall be used. 

606.0 Valves. 

606.1 General Valves up to and including 2 inches (50 mm) 
in size shall be brass or other approved material. Sizes 
exceeding 2 inches (50 mm) shall be permitted to have cast- 
iron or brass bodies. Each gate or ball valve shall be a fullway 
type with working parts of non-corrosive material. Valves 
carrying water used in potable water systems intended to sup- 
ply drinking water shall be in accordance with the require- 
ments of NSF 61 as referenced in Table 1 40 1 . 1 . 

606.2 Fullway Valve. A fullway valve controlling outlets 
shall be installed on the discharge side of each water meter 
and on each unmetered water supply. Water piping supply- 
ing more than one building on one premises shall be 
equipped with a separate fullway valve to each building, so 
arranged that the water supply can be turned on or off to an 
individual or separate building provided; however, that sup- 
ply piping to a single-family residence and building acces- 
sory thereto shall be permitted to be controlled on one 
valve. Such shutoff valves shall be accessible. A fullway 1 
valve shall be installed on the discharge piping from water 
supply tanks at or near the tank. A fullway valve shall be 
installed on the cold water supply pipe to each water heater 
at or near the water heater. 

606.3 Multtdwelling Units. In multid welling units, one or 
more shutoff valves shall be provided in each dwelling unit 
so that the water supply to a plumbing fixture or group of 
fixtures in that dwelling unit can be shut off without stopping 
water supply to fixtures in other dwelling units. These valves 
shall be accessible in the dwelling unit that they control. 

606.4 Multiple Openings. Valves used to control two or 
more openings shall be fullway gate valves, ball valves, or 
other approved valves designed and approved for the ser- 
vice intended. 

606.5 Control Valve. A control valve shall be installed 
immediately ahead of each water-supplied appliance and 
immediately ahead of each slip joint or appliance supply. 

Parallel water distribution systems shall provide a con- 
trol valve either immediately ahead of each fixture being 
supplied or installed at the manifold, and shall be identified 
with the fixture being supplied. 

606.6 Accessible. Required shutoff or control valves shall 
be accessible. 

606.7 Multiple Fixtures. A single control valve shall be 
installed on a water supply line ahead of an automatic 
metering val ve that supplies a battery of fixtures. 

606.8 [OSHPD 1, 2, 3, & 4/ Each riser or branch shall be 
provided with an accessible sectionaUzing valve in hot-and 



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cold-water systems to permit servicing or replacement of 
piping or equipment. Stop valves shall be provided at each 
fixture, 

607.0 Gravity Supply Tanks. 

607.1 General. Gravity tanks for potable water shall be 
tightly covered, and have not less than a 16 square inch (0.01 
m 2 ) overflow screened with copper screen having not less 
than 14 nor exceeding 1 8 openings per linear inch (25.4 mm). 

607.2 Potable Water Tanks. Potable water tanks, interior 
tank coatings, or tank liners intended to supply drinking 
water shall be in accordance with NSF 61. 

608.0 Water Pressure, Pressure Regulators, Pressure 
Relief Valves, and Vacuum Relief Valves. 

608.1. Inadequate Water Pressure. Where the water pres- 
sure in the main or other source of supply wi ll not provide a 
residual water pressure of not less than 15 pounds force per 
square inch (psi) (103 kPa), after allowing for friction and 
other pressure losses, a tank and a pump or other means that 
will provide said 15 psi (103 kPa) pressure shall be 
installed. Where fixtures, fixture fittings, or both are 
installed that require residual pressure exceeding 15 psi (103 
kPa), that minimum residual pressure shall be provided. 

608.2 Excessive Water Pressure. Where static water pres- 
sure in the water supply piping is exceeding 80 psi (552 
kPa), an approved-type pressure regulator preceded by an 
adequate strainer shall be installed and the static pressure 
reduced to 80 psi (552 kPa) or less. Pressure regulator(s) 
equal to or exceeding .1 Vi inches (38 mm) shall not require a 
strainer. Such regulators) shall control the pressure to 
water outlets in the building unless otherwise approved by 
the Authority Having Jurisdiction. Each such regulator and 
strainer shall be accessibly located aboveground or in a 
vault equipped with a properly sized and sloped bore- 
sighted drain to daylight, shall be protected from freezing, 
and shall have the strainer readily accessible for cleaning 
without removing the regulator or strainer body or discon- 
necting the supply piping. Pipe size determinations shall be 
based on 80 percent of the reduced pressure where using 
Table 610.4. An approved expansion tank shall be installed 
in the cold water distribution piping downstream of each 
such regulator to prevent excessive pressure from develop- 
ing due to thermal expansion and to maintain the pressure 
setting of the regulator. Expansion tanks used in potable 
water systems intended to supply drinking water shall be in 
accordance with NSF 61 . The expansion tank shall be prop- 
erly sized and installed in accordance with the manufac- 
turer's installation instructions and listing. Systems 
designed by registered engineers shall be permitted to use 
approved pressure relief valves in lieu of expansion tanks 
provided such relief valves have a maximum pressure relief 
setting of 100 psi (689 kPa) or less. 

608.3 Expansion Tanks, Combination Pressure, and 
Temperature Relief Valves. A water system provided 
with a check valve, back.fl.ow preventer, or other normally 
closed device that prevents dissipation of building pressure 
back into the water main shall be provided with an 



approved, listed, and adequately sized expansion tank or 
other approved device having a similar function to control 
thermal expansion. Such expansion tank or other approved 
device shall be installed on the building side of the check 
valve, backflow preventer, or other device and shall be 
sized and installed in accordance with the manufacturer's 
installation instructions. | 

A water system containing storage water heating 
equipment shall be provided with an approved, listed, ade- 
quately sized combination pressure and temperature relief 
valve, except for listed .no.nsto.rage instantaneous heaters 
having an inside diameter of not more than 3 inches (80 
mm). Each such approved combination temperature and 
pressure relief valve shall be installed on the water-heating 
device in an approved location based on its listing require- 
ments and the manufacturer's installation instructions. Each 1 
such combination temperature and pressure relief valve shall 
be provided with a drain in accordance with Section 608.5. 

608.4 Pressure Relief Valves. Each pressure relief valve 
shall be an approved automatic type with drain, and each 
such relief valve shall be set at a pressure of not more than 
150 psi (1034 kPa). No shutoff valve shall be installed 
between the relief valve and the system or in the drain line. 

608.5 Drains. Relief valves located inside a building shall 
be provided with a drain, not smaller than the relief valve 
outlet, of galvanized steel, hard-drawn copper piping and 
fittings, CPVC, PP, or listed relief valve drain tube with fit- | 
tings that will not reduce the internal bore of the pipe or 
tubing (straight lengths as opposed to coils) and shall 
extend from the valve to the outside of the building, with 
the end of the pipe not more than 2 feet (610 mm) nor less 
than 6 inches (152 mm) aboveground or the flood level of 
the area receiving the discharge and pointing downward. 
Such drains shall be permitted to terminate at other 
approved locations. Relief valve drains shall not terminate 
in a building's crawl space. No part of such drain pipe shall 
be trapped or subject to freezing. The terminal end of the 
drain pipe shall not be threaded. 

608.6 Water-Heating Devices. A water-heating device 
connected to a separate storage tank and having valves 
between said heater and tank shall be provided with an 
approved water pressure relief valve. 

608.7 Vacuum Relief Valves. Where a hot-water storage 
tank or an indirect water heater is located at an elevation 
above the fixture outlets in the hot- water system, a vacuum 
relief val ve shal l be installed on the storage tank or heater. 

609.0 installation, Testing, Unions, and Location. 

609.1 Installation. Water piping shall be adequately sup- 
ported in accordance with Table 313.1. Burred ends shall | 
be reamed to the full bore of the pipe or tube. Changes in 
direction shall be made by the appropriate use of fittings, 
except that changes in direction in copper tubing shall be 
permitted to be made with bends, provided that such bends 
are made with bending equipment that does not deform or 
create a loss in the cross-sectional area of the tubing. 
Changes in direction are allowed with flexible pipe and tub- 
ing without fittings in accordance with the manufacturer's 
instructions. Provisions shall be made for expansion in hot- | 



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water piping. Piping, equipment, appurtenances, and devices 
shall be installed in a workmanlike manner in accordance 
with the provisions and intent of the code. Building supply 
yard piping shall be not less than 12 inches (305 mm) below 
the average local frost depth. The cover shall be not less 
than 12 inches (305 mm) below finish grade. 

609.2 Trenches. Water pipes shall not be run or laid in the 
same trench as building sewer or drainage piping constructed 
of clay or materials that are not approved for use within a 
building unless both of the following conditions are met: 

|(1) The bottom of the water pipe, shall be not less than 12 
inches (305 mm) above the top of the sewer or drain 
line. 

(2) The water pipe shall be placed on a solid shelf exca- 
vated at one side of the common trench with a clear 
horizontal distance of not less than 12 inches (305 mm) 
from the sewer or drain line. 

Water pipes crossing sewer or drainage piping 
constructed of clay or materials that are not approved 
for use within a building shall be laid not less than 1 2 
inches (305 mm) above the sewer or drain pipe. 

609.3 Under Concrete Slab. Water piping installed within 
a building and in or under a concrete floor slab resting on 
the ground shall be installed in accordance with the follow- 
ing requirements: 

(1) Ferrous piping shall have a protective coating of an 
approved type, machine applied and in accordance with 
recognized standards. Field wrapping shall provide 
equivalent protection and shall be restricted to those short 
sections and fittings necessarily stripped for threading. 
Zinc coating (galvanizing) shall not be deemed ade- 
quate protection for piping or fittings. Approved non- 
ferrous piping shall not be required to be wrapped. 

(2) Copper tubing shall be installed without joints where 
possible. Where joints are permitted, they shall be 
brazed, and fittings shall be wrought copper. 

For the purpose of this section, ''within a building" shall 
mean within the fixed limits of the building foundation. 

609.4 Testing. Upon completion of a section or of the 
entire hot and cold water supply system, it shall be tested 
and proved tight under a water pressure not less than the 
working pressure under which it is to be used. The water 
used for tests shall be obtained from a potable source of sup- 
ply. Except for plastic piping, a 50 psi (345 kPa) air pressure 
shall be permitted to be substituted for the water test. In 
either method of test, the piping shall withstand the test 
without leaking for a period of not less than 15 minutes. 

609.5 Unions. Unions shall be installed in the water supply 
piping not more than 12 inches (305 mm) of regulating 
equipment, water heating, conditioning tanks, and similar 
equipment that requires service by removal or replacement 
in a manner that will facilitate its ready removal. 

609.6 Location. Except as provided in Section 609.7, no 
building supply shall be located in a lot other than the lot 
that is the site of the building or structure served by such 
building supply. 



609.7 Abutting Lot. Nothing contained in this code shall 
be construed to prohibit the use of an abutting lot to: jj 

(1) Provide access to connect a building supply to an 
available public water service where proper cause and 
legal easement not in violation of other requirements 
have been first established to the satisfaction of the 
Authority Having Jurisdiction. 

(2) Provide additional space for a building supply where 
proper cause, transfer of ownership, or change of 
boundary not in violation of other requirements have 
been first established to the satisfaction of the Author- 
ity Having Jurisdiction. The instrument recording such 
action shall constitute an agreement with the Authority 
Having Jurisdiction, which shall clearly state and show 
that the areas so joined or used shall be maintained as a 
unit during the time they are so used. Such an agree- 
ment shall be recorded in the office of the County 
Recorder as a part of the conditions of ownership of 
said properties, and shall be binding on heirs, succes- 
sors, and assigns to such properties. A copy of the 
instrument recording such proceedings shall be filed 
with the Authority Having Jurisdiction. 

609.8 Low-Pressure Cutoff Required on Booster Pumps 
for Water Distribution Systems. Where a booster pump 
(excluding a fire pump) is connected to a building supply or I 
underground water pipe, a low-pressure cutoff switch on the | 
inlet side of the pump shall be installed not more than 5 feet 
(1524 mm) of the inlet. The cutoff switch shall be set for not 
less than 10 psi (69 kPa). A pressure gauge shall be installed 
between the shutoff valve and the pump. 

609.9 Disinfection of Potable Water System. New or 
repaired potable water systems shall be disinfected prior to 
use where required by the Authority Having Jurisdiction. 
[OSHPD 1,2, 3 & 4]. Prior to utilization of newly con- 1| 
structed or altered potable water piping systems, all affected 
potable water piping shall be disinfected using procedures 
prescribed in California Plumbing Code Sections 609.9(1) 
through 609.9(4). The method to be followed shall be that 
prescribed by the Health Authority or, in case no method is 
prescribed by it, the following: 

(1) The pipe system shall be flushed with clean, potable 
water until potable water appears at the points of outlet. 

(2) The system or parts thereof shall be filled with a water- 
chlorine solution containing not less than 50 parts per 
million of chlorine, and the system or part thereof shall 
be valved-off and allowed to stand for 24 hours; or, the 
system or part thereof shall be filled with a water-chlo- 
rine solution containing not less than 200 parts per mil- 
lion of chlorine and allowed to stand for 3 hours. 

(3) Following the allowed standing time, the system shall 
be flushed with clean, potable water until the chlorine 
residual in the water coming from the system does not 
exceed the chlorine residual in the flushing water. 

(4) The procedure shall be repeated where it is shown by 
bacteriological examination made by an approved 
agency that contamination persists in the system. 



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609.10 Water Hammer. [Not adopted by HCDf Building 
water supply systems where quick-acting valves are 
installed shall be provided with water hammer arrester(s) to 
absorb high pressures resulting from the quick closing of 
these valves. Water hammer arresters shall be approved 
mechanical devices in accordance with the applicable stan- 
dard^) referenced in Table 1401.1 and shall be installed as 
close as possible to quick-acting valves. 

609.10.1 Mechanical Devices. Where listed mechanical 
devices are used, the manufacturer's specifications as to 
location and method of installation shall be followed. 

610.0 Size of Potable Water Piping. 

610.1 Size. The size of each water meter and each potable 
water supply pipe from the meter or other source of supply 
to the fixture supply branches, risers, fixtures, connections, 
outlets, or other uses shall be based on the total demand and 
shall be determined according to the methods and proce- 
dures outlined in this section. Water piping systems shall be 
designed to ensure that the maximum velocities allowed by 
the code and the applicable standard are not exceeded. 

610.2 Pressure Loss. Where a water filter, water softener, 
| backflow prevention device, tankless water heater, or simi- 
lar device is installed in a water supply line, the pressure 
loss through such devices shall be included in the pressure 
loss calculations of the system, and the water supply pipe 
and meter shall be adequately sized to provide for such a 
pressure loss. 

No water filter, water softener, backflow prevention 
device, or similar device regulated by this code shall be 
installed in a potable water supply piping where the instal- 
lation of such device produces an excessive pressure drop 
in such water supply piping. In the absence of specific pres- 
sure drop information, the diameter of the inlet or outlet of 
such device or its connecting piping shall be not less than 
the diameter of such water distribution piping to the fix- 
tures served by the device. 

Such devices shall be of a type approved by the 
Authority Having Jurisdiction and shall be tested for flow 
rating and pressure loss by an approved laboratory or rec- 
ognized testing agency to standards consistent with the 
intent of this chapter. 

610.3 Quantity of Water. The quantity of water required 
to be supplied to every plumbing fixture shall be repre- 
sented by fixture units, as shown in Table 610.3. Equivalent 
fixture values shown in Table 610.3 include both hot and 
cold water demand. 

610.4 Parallel Distribution Systems. Systems within the 
range of Table 610.4 shall be permitted to be sized from that 
table or by the method in accordance with Section 610.5. 

Listed parallel water distribution systems shall be 
installed in accordance with their listing, but at no time 
shall a portion of the system exceed the maximum veloci- 
ties allowed by the code. 

610.5 Sizing per Appendices A and C. Except as provided 
in Section 610.4, the size of each water piping system shall 
be determined in accordance with the procedure set forth in 



Appendix A. For alternate methods of sizing water supply 
systems, see Appendix C. 

610.6 Friction and Pressure Loss. Except where the type 
of pipe used and the water characteristics are such that no 
decrease in capacity due to length of service (age of sys- 
tem) is expected, friction-loss data shall be obtained from 
the "Fairly Rough" or "Rough" charts in Appendix A of 
this code. Friction or pressure losses in water meter, valve, 
and fittings shall be obtained from the same sources. Pres- 
sure losses through water-treating equipment, backflow 
prevention devices, or other flow-restricting devices shall 
be computed in accordance with Section 610.2. 

610.7 Conditions for Using Table 610.4. On a proposed 
water piping installation sized using Table 610.4, the fol- 
lowing conditions shall be determined: 

( 1 ) Total number of fixture units as determined from Table 
610.3, Equivalent Fixture Units, for the fixtures to be 
installed. 

(2) Developed length of supply pipe from meter to most 
remote outlet. 

(3) Difference in elevation between the meter or other 
source of supply and the highest fixture or outlet. 

(4) Pressure in the street main or other source of supply at 
the locality where the installation is to be made. 

(5) In localities where there is a fluctuation of pressure in 
the main throughout the day, the water piping system 
shall be designed on the basis of the minimum pressure 
available. 

610.8 Size of Meter and Building Supply Pipe Using 
Table 610.4. The size of the meter and the building supply 
pipe shall be determined as follows: 

(1) Determine the available pressure at the water meter or 
other source of supply. 

(2) Add or subtract depending on positive or negative ele- I 
vation change, Vi psi (3.4 kPa) for each foot (305 mm) | 
of difference in elevation between such source of sup- 
ply and the highest water supply outlet in the building 
or on the premises. 

(3) Use the "pressure range" group within which this pres- 
sure will fall using Table 610.4. 

(4) Select the "length" column that is equal to or longer 
than the required length. 

(5) Follow down the column to a fixture unit value equal 
to or exceeding the total number of fixture units 
required by the installation. 

(6) Having located the proper fixture unit value for the 
required length, sizes of meter and building supply pipe 
as found in the two left-hand columns shall be applied. 
No building supply pipe shall be less than Va of an inch 

(20 mm) in diameter. 

610.9 Size of Branches. Where Table 610.4 is used, the 
minimum size of each branch shall be determined by the 
number of fixture units to be served by that branch, the 
total developed length of the system, and the meter and 
street service size in accordance with Section 610.8. No 
branch piping is required to be larger in size than that 
required by Table 610.4 for the building supply pipe. 



144 



DECEMBER 7, 2013 SUPPLEMENT 
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2013 CALIFORNIA PLUMBING CODE 



WATER SUPPLY AND DISTRIBUTION 



TABLE 610.3 

WATER SUPPLY FIXTURE UNITS (WSFU) AND MINIMUM FIXTURE BRANCH PIPE SIZES 3 



APPLIANCES, APPURTENANCES OR FIXTURES 2 

Bathtub or Combination Bath/Shower (fill) 

% inch Bathtub Fill Valve 
Bidet 

Clothes Washer 
i Dental Unit, cuspidor 
Dishwasher, domestic 
! Drinking Fountain or Water Cooler 
Hose Bibb 



MINIMUM 
FIXTURE BRANCH 

PIPE SIZE 1 ' 4 
(inches) 



Hose Bibb, each additional' 
Lavatory 

Lawn Sprinkler, each head 5 
Mobile Home, each (minimum) 5 * 
Sinks 

Bar 

Clinic Faucet 

Clinic Flushometer Valve with or without faucet 
! Kitchen, domestic with or without dishwasher 

Laundry 
| Service or Mop Basin 

Washup, each set of faucets 
Shower, per head 

Urinal, 1.0 GPF Flushometer Valve 



Urinal, greater than 1.0 GPF Flushometer Valve 

Urinal, flush tank 

Wash Fountain, circular spray 

Water Closet, 1 .6 GPF Gravity lank 

Water Closet, 1 .6 GPF Flushometer Tank 

Water Closet, 1.6 GPF Flushometer Valve 



Water Closet, greater than 1 .6 GPF Gravity Tank 
Water Closet, greater than 1 .6 GPF Flushometer Valve 



1 

Vi 

Yi 

[A 
'/: 

3 /4 



PRIVATE 

4.0 
10.0 
1.0 
4.0 



1.5 
0.5 
2.5 
1.0 
1.0 
1.0 
12.0 

1.0 



1.5 
1.5 
1.5 

2.0 



PUBLIC 

4.0 
10.0 

4.0 
1.0 
1.5 
0.5 
2.5 
1.0 
1.0 
1.0 



2.0 
3.0 
8.0 
1.5 
1.5 
3.0 
2.0 
2.0 



See Footnote 
See Footnote 7 



2.0 

2.5 
2.5 

3.0 



See Footnote 



2.0 

4.0 
2.5 
2.5 

5.5 



See Footnote 



ASSEMBLY 6 



0.75 



1.0 



3.5 

3.5 



7.0 



For SI units: 1 inch = 25 mm 
Notes: 

1 Size of the cold branch pipe, or both the hot and cold branch pipes. 

" Appliances, appurtenances, or fixtures not referenced in this table shall be permitted to be sized by reference to fixtures having a similar flow rate and 
frequency of use. 

| 3 The listed fixture unit values represent their load on the cold water building supply. The separate cold water and hot water fixture unit value for fixtures 
having both hot and cold water connections shall be permitted to be each taken as three-quarter of the listed total value of the fixture. 

4 The listed minimum supply branch pipe sizes for individual fixtures are the nominal (TO.) pipe size. 

5 For fixtures or supply connections likely to impose continuous flow demands, determine the required flow in gallons per minute (gpm) (L/s), and add it 
separately to the demand in gpm (L/s) for the distribution system or portions thereof. 

6 Assembly [Public Use (See Table 422. 1 )]. 

7 Where sizing flushometer systems, see Section 610.10. 

1 8 Reduced fixture unit loading for additional hose bibbs is to be used where sizing total building demand and for pipe sizing where more than one hose 
bibb is supplied by a segment of water distribution pipe. The fixture branch to each hose bibb shall be sized on the basis of 2.5 fixture units. 

9 (HCD 2/ For water supply f ixture unit values related to mobilehome parks in all parts of the State of California, see California Code of Regulations, 
Title 25, Division /, Chapter 2, Article 5, Section 1278. For water supply fixture unit, values related to special occupancy parks in all parts of the Stale of 
California, see California Code of Regulations, Title 25, Division !, Chapter 2.2, Article 5, Section 2278. 



2013 CALIFORNIA PLUMBING CODE 



145 



WATER SUPPLY AND DISTRIBUTION 



METER AND 
STREET 
SERVICE 
(inches) 



V/2 
J 

1 l/l 

2 
I 

r/2 

2 
i 



2 
1 

VA 

2 

2 



BUILDING 
SUPPLY 
AND 
BRANCHES 
(inches) 



TABLE 610.4 

FIXTURE UNIT TABLE FOR DETERMINING WATER PIPE AND METER SIZES 

MAXIMUM ALLOWABLE LENGTH 
(feet) 



VA 

I / 4 

I Vi 

VA 
VA 

2 

2 

2 

?'/■> 



I Vi 



2 
2 
2 

1 [A 



OA 



For SI units: I inch ~ 25 mm, I 
Notes: 



40 



6 

16 

29 

36 

36 

54 

78 

85 

150 

151 

85 
220 
370 
445 

7 

20 
39 
39 
39 
78 
78 
85 
151 
151 
85 
370 
370 
654 

7 

20 

39 

39 

39 

78 

78 

85 

151 

151 

85 
370 
370 
654 
l oot ■= 



60 



16 



33 

47 

68 

84 

124 

129 

85 
205 
327 
418 

7 

20 

39 

39 

39 

78 

78 

85 

151 

151 

85 
370 
370 
640 

7 \ 
20 
39 
39 
39 

78 ! 

78 ; 

85 I 

151 | 

151 | 

85 i 

370 ! 

370 ; 

654 ; 
304.8 mm 



80 



4 

14 

23 

27 

31 

42 

57 

79 

105 

129 

85 

190 

292 

390 

6 
19 
36 
39 
39 
76 
78 
85 
151 
151 
85 
340 
370 
610 



100 



150 



200 



250 



300 



7 

20 
39 
39 
39 
78 
78 
85 
I5l 
15 I 
85 
370 
370 
654 



PRESSURE RANGE 



12 

21 

25 

28 

38 

48 

65 

91 

110 

85 

176 

265 

370 



9 

17 

20 

24 

32 

38 

56 

70 

80 

85 

155 

217 

330 



6 

15 

17 

23 

28 

32 

48 

57 

64 

85 

138 

185 

300 



- 30 to 45 psi 1 

I .1 
5 



PRESSURE RANGE 



_ 5 
17 
33 
36 
39 
67 
78 
85 
151 
151 
85 
318 
370 
580 



4 
14 
28 
30 
39 
52 
66 
85 
128 
150 
85 
272 
368 
535 



3 
11 

23 
25 
39 
44 
52 
85 
105 
117 
85 
240 
318 
500 



15 
21 
25 
28 
43 
49 
53 
82 
127 
164 
280 
- 46 to 60 psi 1 

? ? 



12 
13 
19 
23 
25 
38 
45 
46 

80 

120 
147 
265 



9 

21 

23 
34 
39 
44 
80 
90 
98 
85 
220 
280 
470 



8 
19 
20 
32 
36 

39 
67 
78 
84 
85 
198 
250 
440 



PRESSURE RANGE - Over 60 psi 1 



6 

20 
39 
39 
39 
78 
78 
85 
151 
151 
85 
370 
370 
654 



3 

17 
35 
38 
39 
74 
78 
85 
151 
1.51 
85 
360 
370 
654 



4 

13 
30 
32 

39 
62 

74 

85 
151 
151 
85 
335 
370 
650 



3 
11 
27 
29 
39 
53 
65 
85 
130 
142 
85 
305 

370 

610 



3 

.J.9 

24 
26 
39 
47 
54 
85 
I 13 
122 
85 
282 
340 
570 



400 





4 

.10 

12 

17 

19 

21 

32 

36 

38 

66 

1.04 

124 

240 



6 

17 

18 

27 

30 

33 

55 

62 

67 

85 

1 70 

205 

400 



22 
34 
39 
43 
81 
88 
98 
85 
244 
288 
510 



500 




4 
8 
10 
16 
17 
18 
28 
31 
32 
61 
85 
96 
220 



5 
14 

15 
25 
27 
29 
49 
52 
55 
85 
150 
165 
365 



7 
17 
18 
28 
31 
34 
64 
73 
82 
85 
212 
245 
460 



600 



14 
15 
26 
26 
27 
57 
70 
70 
198 

1 

4 

12 

12 

22 

24 

24 

41 

42 

42 

85 

135 

142 

335 

1 

6 
14 
14 
26 

26 

26 

51 

51 

64 

85 

187 

204 

430 



700 





2 

6 

6 
12 
12 
12 
22 
.23. 
23 
52 
6.1 
61 
1.75 



4 

10 

10 

19 

20 

20 

37 

38 

38 

85 

123 

123 

315 

I 

6 

13 

13 

25 

25 

25 

48 

5.1 

51 

85 

1 72 

172 

404 



800 




2 
6 
6 
12 
12 
12 
21 
21 
21 
49 
57 
57 
158 



3 

9 

9 

19 

19 

19 

34 

35 

35 

85 

110 

1 10 

285 

I 

5 

12 
12 
23 
23 
23 
46 
46 
46 
85 
153 
153 
380 



900 





2 

6 

6 

I I 

1 1 

11 
20 
20 
20 
46 
54 
54 
143 


3 
8 
8 

17 
17 
17 
32 
32 
32 
83 
102 
102 
267 

1 

4 
12 
12 

22 
22 
22 
43 
43 
43 
85 
141 
141 
356 



1000 



6 
6 
II 
11 
1 I 
20 
20 
20 
43 
51 
51 
133 



8 
8 
16 
16 
16 
30 
30 
30 
80 
94 
94 
250 



4 

11 

11 

21 

21 

21 

40 

40 

40 

85 

129 

129 

329 



I pound-force per square inch - 6.8947 kPa 



Available static pressure after head loss. 

Building supply, not less than A of an inch (20 mm) nominal size. 



146 



2013 CALIFORNIA PLUMBING CODE 



WATER SUPPLY AND DISTRIBUTION 



610.10 Sizing for Flushometer Valves. Where using Table 
610.4 to size water supply systems serving flushometer 
valves, the number of flushometer fixture units assigned to 
every section of pipe, whether branch or main, shall be 
determined by the number and category of flushometer 
valves served by that section of pipe, in accordance with 
Table 610.10. Piping supplying a flushometer valve shall 
be not less in size than the valve inlet. 

Where using Table 610.10 to size water piping, care 
shall be exercised to assign flushometer fixture units based 
on the number and category of fixtures served. 

In the example below, fixture units assigned to each 
section of pipe are computed. Each capital letter refers to 
the section of pipe above it, unless otherwise shown. 

LAV LAV UR UR WC WC 
-J I I I 1 I 



LAV LAV UR UR WC WC 
I I I I 1 I 



H I 



B 



M 



LAV UR WC LAV UR WC 
_l 1 I I I I 



TABLE 610.10 
FLUSHOMETER FIXTURE UNITS FOR WATER 
SIZING USING TABLE 610.3 



FIXTURE CATEGORY: WATER CLOSET WITH FLUSHOMETER VALVES 


NUMBER OF 
FLUSHOMETER 
VALVES 


INDIVIDUAL 
FIXTURE UNITS 
ASSIGNED IN 
DECREASING VALUE 


FIXTURE UNITS ASSIGNED 
FOR WATER CLOSETS AND 
SIMILAR 10-UNIT FIXTURES 
IN ACCUMULATIVE VALUES 


1 


40 


40 


2 


30 


70 


3 


20 


90 


4 


15 


105 


5 or more 


10 each 


115 plus 10 for each addi- 
tional fixture in excess of 5 


FIXTURE CATEGORY: URINALS WITH FLUSHOMETER VALVES 


NUMBER OF 
FLUSHOMETER 
VALVES 


INDIVIDUAL 
FIXTURE UNITS 
ASSIGNED IN 
DECREASING VALUE 


FIXTURE UNITS ASSIGNED 
FOR URINALS AND SIMILAR 
5-UNIT FIXTURES IN 
ACCUMULATIVE VALUES 


1 


20 


20 


2 


15 


35 


3 


10 


45 


4 


8 


53 


5 or more 


5 each 


58 plus 5 for each additional 
fixture in excess of 5 



A: 1 WC = 40 F.U. 

B: 2 WO 70 F.U. 

C: 2 WC (70) + 1 UR (20) - 90 F.U. 

D; 2 WC (70) + 2 UR (35) * 105 F.U. 

E: 2 WC (70) + 2 UR (35) + 1 LAV (1) - 106 F.U. 

F: 2 WC (70) + 2 UR (35) + 2 LAV (2) - 107 F.U. 

G: 1 LAV = 1 F.U. 

H: 2 LAV - 2 F.U. 

I: 2 LAV (2) + 1 UR (20) = 22 F.U. 

J: 2 LAV (2)+ 2 UR (35) = 37 F.U. 

K: 2 LAV (2) + 2 UR (35) + 1 WC (40) - 77 F.U. 

L: 2 LAV (2) + 2 UR (35) + 2 WC (70) = 107 F.U. 

Mi 4 WC (105) + 4 UR (53) + 4 LAV (4) « 162 F.U. 

N: 1 WC = 40 F.U. 

O: 1 WC (40) + 1 UR (20) - 60 F.U. 

P: 1 WC (40) + 1 UR (20) + 1 LAV (1) - 61 F.U. 

Q: 2 WC (70) + 1 UR (20) + 1 LAV (1) = 91 F.U. 

R: 2 WC (70) + 2 UR (35) + 1 LAV (1) - 106 F.U. 

S: 2 WC (70) + 2 UR (35) + 2 LAV (2) = 107 F.U. 

T: 6 WC (125) + 6 UR (63) + 6 LAV (6) = 194 F.U. 

EXAMPLE 610.10 
SIZING METHOD FOR PUBLIC USE FIXTURES 
USING TABLE 610.10 



610.11 Sizing Systems for Flushometer Tanks. The size 
of branches and mains serving flushometer tanks shall be 
consistent with the sizing procedures for flush tank water 
closets. 

610.12 Sizing for Velocity. Water piping systems shall not 
exceed the maximum velocities listed in this section or 
Appendix A. 

610.12.1 Copper Tube Systems. Maximum velocities 
in copper and copper alloy tube and fitting systems 
shall not exceed 8 feet per second (ft/s) (2.4 m/s) in 
cold water and 5 ft/s in hot water (1.5 m/s). 

610.12.2 Tubing Systems Using Copper Alloy Fit- 
tings. Maximum velocities through copper alloy fit- 
tings in tubing other than copper shall not exceed 8 ft/s 
(2.4 m/s) in cold water and 5 ft/s in hot water (1.5 m/s). 

610.13 Exceptions. The provisions of this section relative 
to size of water piping shall not apply to the following: 

(1) Water supply piping systems designed in accordance 
with recognized engineering procedures acceptable to 
the Authority Having Jurisdiction. 

(2) Alteration of or minor additions to existing installa- 
tions, provided the Authority Having Jurisdiction finds 
that there will be an adequate supply of water to oper- 
ate fixtures. 

(3) Replacement of existing fixtures or appliances. 

(4) Piping that is part of fixture equipment. 



2013 CALIFORNIA PLUMBING CODE 



DECEMBER 7, 2013 SUPPLEMENT 



147 



(5) Unusual conditions where, in the judgment of the 
Authority Having Jurisdiction, an adequate supply of 
water is provided to operate fixtures and equipment. 

(6) Nonpotable waterlines as defined in Section 601.2. 

(7) The size and material of irrigation water piping 
installed outside of a building or structure and sepa- 
rated from the potable water supply by means of an 
approved air gap or backflow prevention device is not 
regulated by this code. The potable water piping sys- 
tem supplying each such irrigation system shall be ade- 
quately sized as required elsewhere in this chapter to 
deliver the full connected demand of both the domestic 
use and the irrigation systems. 

611.0 Drinking Water Treatment Units. 

611.1 Application. Drinking water treatment units shall 
comply with NSF 42 or NSF 53. Water softeners shall 
comply with NSF 44. Ultraviolet water treatment systems 
shall comply with NSF 55. Reverse osmosis drinking water 
treatment systems shall comply with NSF 58. Drinking 
water distillation systems shall comply with NSF 62, 

611.2 Air Gap Discharge. Discharge from drinking water 
treatment units shall enter the drainage system through an 
air gap in accordance with Table 603.3.1 or an air gap device 
in accordance with Table 603.2, NSF 58, or IAPMO PS 65. 

611.3 Connection Tubing. The tubing to and from drink- 
ing water treatment units shall be of a size and material as 
recommended by the manufacturer. The tubing shall com- 
ply with the requirements of NSF 14, NSF 42, NSF 44, 
NSF 53, NSF 55, NSF 58, NSF 62 or the appropriate mate- 
rial standards referenced in Table 1401,1. 

611.4 Sizing of Residential Softeners. Residential-use water 
softeners shall be sized in accordance with Table 61 1 A 



TABLE 611.4 
SIZING OF RESIDENTIAL WATER SOFTENERS 4 



REQUIRED SIZE OF SOFTENER 
CONNECTION (inches) 


NUMBER OF BATHROOM 
GROUPS SERVED 1 


3 /4 


up to 2" 


1 


up to 4 3 



For SI units: I inch = 25 mm 
Notes: 

! Installation of a kitchen sink and dishwasher, laundry tray, and auto- 
matic clothes washer permitted without additional size increase. 

2 An additional water closet and lavatory permitted. 

3 Over four bathroom groups, the softener size shall be engineered for 
the specific installation. 

4 See also Appendix A, Recommended Rules for Sizing the Water Sup- 
ply System, and Appendix C, Alternate Plumbing Systems, for alter- 
nate methods of sizing water supply systems. 

612.0 Residential Fire Sprinkler Systems. 

612.1 General. Where residential fire sprinkler systems are 
I installed, they shall be installed in accordance with the 

standards listed in Table 1401.1. 



613.0 [OSHPD h2,3& 4/ Domestic Hot-Water Distribu- 
tion Systems for Health Facilities and Clin ics. 

61 3 J The domestic water-heating equipment and distribu- 
tion systems shall supply water at the temperature and 
amounts shown in Table 613.1. Where the system is 
designed by a mechanical engineer, appropriate diversity 
factors may be utilized. 



TABLE 613.1 
[OSHPD 1,2,3 & 4] HOT WATER USE 





CLINICAL 


DIETARY 1 


LAUNDRY 2 


Liter/Hour/Bed 


11.9 


7.2 


7.6 


Gallons /Hoar /Bed 


3 


2 


2 


Temperature °C 


41-49.0 


49.0 


71.0 


Temperature °F 


105-120.0 


120.0 


160.0 



1 Rinse water temperature at automatic dishwashing equipment and pot 
sinks shall be 180°F(82°C). 



Exception; The rinse water supply to pot rinse sinks may be deleted if 
a method of chemical disinfection using a three-compartment sink is 
proposed. 

2 The required temperature of 160°F (71°C) in the laundry is that mea- 
sure in the washing machine and shall be supplied so that the temper- 
ature may be maintained over the entire wash and rinse period. 

Exception: A lower water temperature of 140PF (6(PC) may be utilized, 
provided linens are subsequently passed through a tumbler dryer at 180°F 
(82°C) or a flatwork ironer at 30(FF (149°C). 

613.2 At least two pieces of hot-water-heating equipment 
shall be provided to supply hot water for dishwashing and 
minimum patient services such as handwashing and bathing. 
Booster heaters for 125°F to 180°F (52°C to 82°C) water 
are acceptable as a second piece of equipment for dishwash- 
ing. Wlxere storage tanks are separate from the water heater, 
at least two independent storage tanks shall be provided. \ \ 

613.3 Instantaneous heaters are permitted for supplying 
hot water to handwashing and bathing fixtures if a continu- 
ous mechanical recirculation system is also provided. 

613.4 Water storage tanks shall be fabricated of corrosion- 
resistant materials or lined with corrosion-resistant materi- 
als. 

613.5 Temperature control valves shall be provided to 
automatically regulate the temperature of hot water deliv- 
ered to plumbing fixtures used by patients to a range of 
105°F (41°C) minimum to 120°F (49°C) maximum. High 
temperature alarm set at 125°F (52°C) shall be provided. 
The audible/visual device for the high temperature alarm 
shall annunciate at a continuously occupied location. 

613.6 Hot-water distribution system serving patient care 
areas shall be under constant mechanical recirculation to 
provide continuous hot water at each hot water outlet. Non- 
recirculated fixture branch piping shall not exceed 25 feet 
(7.62 meters) in length. Dead-end piping (risers with no flow, 
branches with no fixture) shall not be installed. In renovation 
projects, dead-end piping shall be removed in the area of ren- 
ovation. Empty risers, mains, and branches installed for 
future use shall be permitted. 



148 



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WATER SUPPLY AND DISTRIBUTION 



613.7 At fixtures where water exceeding 125°F (52°C) is 
accessible to patien ts or personnel warning signs in letters at 
least 2 inches (51 mm) high shall be posted above the fixtures. 

613.8 Sectionalizing valves shall be provided as required by 
Section 606.8. 

614.0 Dialysis Water-Distribution Systems. 

614.1 [OSHPD 1, 2, 3, & 4] Dialysis water feed lines shall be 
PVC (polyvinyl chloride), glass, stainless steel, or PVDF 
(polyvinylidene fluoride) and sized to provide a minimum 
velocity of 1.5 feet per second (0.46 m/s). The piping shall be 
a singleloop system with or without recirculation. Branches 
to dialysis machines shall be l A inch (6.4 mm) inside dimen- 
sion and take off from the bottom of the main feed line. 

614.2 A ll piping for multistation or central dialysis units shall 
be rigid where possible. All piping and tubing shall be in a 
neat arrangement. The placement of piping or tubing on the 
floor is not permitted. 

614.3 All valves shall be located in accessible locations. 

614.4 Piping and valves shall be identified according to their 
function. 

614.5 A means of preventing backwashing or flushing of the 
system when one or more stations are in operation shall be 
provided 

614.6 A continuous audible alarm shall sound at the nurses' 
station and remote equipment rooms when the minimum 
velocity is not maintained, or if backwashing or flushing is 
attempted while one or more stations are in operation. 

614. 7 Water used for dialysis treatment shall meet the latest 
edition of ANSI/American Association of Medical Instrumen- 
tations (A A Ml) RD62, Water treatment equipment for 
hemodialysis applications. 

614.8 A diagram of all piping as installed shall be posted at 
the nurses ' station and equipment room of all multistation or 
central dialysis units, 

615.0 identification of Potable and Nonpotable Water 
Lines. 

61 5 J Uses Not Permitted. 

615. LI [OSHPD h 2,3 & 4] Nonpotable water shall not 
be piped for drinking, washing or bathing, washing of 
clothing, cooking, washing of food, washing of cooking 
or eating utensils, washing of food preparation or pro- 
cessing premises, or other personal service rooms, 

615.2 (OSHPD 1, 2, 3 & 4] Non-potable water systems or 
systems carrying any other non-potable substance shall be 
installed so as to prevent back/low or backs iphonage into 
a potable water system. 

615.3 [OSHPD 1,2, 3 & 4] Outlets for non-potable water, 
such as water for industrial or f ire fighting purposes, shall 
be posted in a manner understandable to all employees to 
indicate that the water is unsafe and shall not be used for 
drinking, washing, cooking or other personal service pur- 
poses. 



615.4 [OSHPD 1] Emergency Water Supply. 

615.4.1 For new acute care hospital buildings submit- 
ted after the effective date of this code, the hospital 
shall have an on-site water supply sufficient to oper- 
ate essential hospital utilities and equipment in the 
acute care hospital building, to support 72 hours of 
continuing operation in the event of an emergency. 
Any general acute care hospital in operation after 
January I, 2030 shall have an on-site water supply 
sufficient to operate essential hospital utilities and 
equipment in the acute care hospital buildings on the 
campus with an SPC-3, SPC-4, or SPC-5 rating, to 
support 72 hours of continuing operation in the even t 
of an emergency. See also California Building Code, 
Part 2, Section / 61 6 A. 1 ,42. 

The emergency water storage capacity shall be 

computed based on an approved Water Conserva- 
tion/Water Rationing Plan to provide for 72 hours of 
operation, accepted by the licensing agency. For acute 
care hospital facilities or buildings required to meet 
NPC-5, on-site water supply of not less than 1 50 gal- 
lons [567.9 L] [based on 50 gallons/day/bed for 72 
hours] of potable water per licensed bed shall be pro- 
vided. In no event shall the campus on-site water stor- 
age capacity be less than one tank with at least 5,000 
gallons capacity. 

The emergency supply shall have fittings to allow 
for replenishment of the water supply from trans- 
portable water sources and a means to dispense water 
to portable containers in the event that normal water- 
supply becomes unavailable. 

Exception: With the approval of the Office and the 
licensing agency, hook-ups that allow for the use of 
transportable sources of potable water may be provided 
in lieu of 72 hours of on-site storage if a minimum 
onsiie water supply of potable and industrial water is 
provided, sufficient to support 24 hours of operation, 
without replenishment based on the hospital 's approved 
Water Conservation/Water Rationing plan. In no event 
shall the on-site water storage capacity be less than one- 
tank with at least 5,000 gallons capacity. This emer- 
gency supply tank shall have fittings to allow for 
replenishment of the water supply from transportable 
water sources and a means to dispense water to 
portable containers in the event that normal water sup- 
ply becomes unavailable. 

615.4.2 The emergency supply of water shall be pro- 
vided at adequate pressure using gravity, pressure 
tanks, or booster pumps. Pumps used for this purpose 
shall be provided with electrical power from the on- 
site emergency power supply system. 



2013 CALIFORNIA PLUMBING CODE 



149 



3000 ONiaiAinid viNHOdnvo zioz 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 7 - SANITARY DRAINAGE 

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 



Adopting Agency 


BSC 


SFM 


HCD 


DSA 


OSHPD 


BSCC 


DPH 


AGR 


DWR 


CA 


SL 


SLC 


1 


2 


1-AC 


AC 


SS 


ss/cc 


1 


2 


3 


4 


Adopt Entire Chapter 


X 












X 


X 
























Adopt Entire Chapter as amended 
(amended sections listed below) 






X 


X 










X 


X 


X 


X 






X 










Adopt only those sections that are 
listed below 

Chapter/Section 








































701.1(2) (a) 






X 


X 
































701.1(2) (b) 


















X 


X 


X 


X 
















Table 702.1 








A 
































"TAf 1 A A 

/Uj.IU.4 






X 


X 
































710.3.1 






X 


X 
































713.4 






X 


































717.2 






























X 










724.0 






























X 










725.0 






























X 










726.0 






























X 










727.0 


















X 























2013 CALIFORNIA PLUMBING CODE 



JANUARY 1,2014 ERRATA 
RUFF 



151 



2013 CALIFORNIA PLUMBING CODE 



CHAPTER 7 

SANITARY DRAINAGE 



Part I - Drainage Systems. 

701.0 Materials. 

701.1 Drainage Piping. Materials for drainage piping shall 
be in accordance with one of the referenced standards in 
Table 701 . 1 except that: 

(1) No galvanized wrought-iron or galvanized steel pipe 
shall be used underground and shall be kept not less 
than 6 inches (152 mm) aboveground. 

(2) ABS and PVC DWV piping installations shall be 
installed in accordance with applicable standards refer- 

II enced in Table 1401.1. Except for individual single- 
family dwelling units, materials exposed within ducts 
or plenums shall have a flame-spread index of a 
maximum of 25 and a smoke-developed index of a 

| maximum 50, where tested in accordance with ASTM 
E 84 and UL 723. 

|| (a) [HCD 1 & HCD 2] ABS and PVC installations are 
limited to not more than two stories of areas of 
residen tial accommoda tion. 

II (b) [OSHPD 12, 3 & 4] ABS and PVC installations 
are not allowed. 

(3) No vitrified clay pipe or fittings shall be used above- 
ground or where pressurized by a pump or ejector. 
They shall be kept not less than 12 inches (305 mm) 
belowground. 

(4) Copper tube for drainage and vent piping shall have a 
weight of not less than that of copper drainage tube 
type DWV. 

(5) Stainless steel 304 pipe and fittings shall not be 
installed underground and shall be kept not less than 6 
inches (152 mm) aboveground. 

(6) Cast-iron soil pipe and fittings shall be listed and tested 
in accordance with standards referenced in Table 
1401.1. Such pipe and fittings shall be marked with 
country of origin and identification of the original 
manufacturer in addition to markings required by refer- 
enced standards. 

701.2 Drainage Fittings. Materials for drainage fittings 
shall comply with the applicable standards referenced in 
Table 701.1 of the same diameter as the piping served, and 
such fittings shall be compatible with the type of pipe used. 

701.2.1 Screwed Pipe. Fittings on screwed pipe shall 
be of the recessed drainage type. Burred ends shall be 
reamed to the full bore of the pipe. 

701.2.2 Threads. The threads of drainage fittings shall 
be tapped so as to allow ] A inch per foot (20.8 mm/m) 
grade. 

701.2.3 Type. Fittings used for drainage shall be of the 
drainage type, have a smooth interior water-way, and 
be constructed so as to allow l A inch per foot (20.8 
mm/m) grade. 



701.3 Lead. (See Table 1401.1) Sheet lead shall be not less 
than the following: 

(1) For safe pans - not less than 4 pounds per square foot 
lb/ft 2 (19 kg/m 2 ) or l A6 of an inch (1.6 mm) thick. 

(2) For flashings or vent terminals - not less than 3 lb/ft 2 
(15 kg/m 2 ) or 0.0472 of an inch (1.1989 mm) thick. 

(3) Lead bends and lead traps shall be not less than x /% of 
an inch (3.2 mm) wall thickness. 

701.4 Caulking Ferrules. Caulking ferrules shall be manu- 
factured from bronze or copper and shall be in accordance 
with Table 701.4. 

701.5 Soldering Bushings. Soldering bushings shall be of 
bronze or copper in accordance with Table 701.5. 

702.0 Fixture Unit Equivalents. 

702.1 Trap Size. The unit equivalent of plumbing fixtures 
shown in Table 702.1 shall be based on the size of the trap 
required, and the unit equivalent of fixtures and devices not 
shown in Table 702.1 shall be based on the size of trap or 
trap arm. 

Maximum drainage fixture units for a fixture trap and 
trap arm loadings for sizes up to 4 inches (100 mm) shall be I 
in accordance with Table 702.2(a). 

702.2 Intermittent Flow. Drainage fixture units for inter- 
mittent flow into the drainage system shall be computed on 
the rated discharge capacity in gallons per minute (gpm) 
(L/s) in accordance with Table 702.2(b). 

702.3 Continuous Flow. For a continuous flow into a 
drainage system, such as from a pump, sump ejector, air 
conditioning equipment, or similar device, 2 fixture units 
shall be equal to each gallon per minute (gpm) (0.06 L/s) of | 
flow. 



TABLE 701.4 
CAULKING FERRULES 



PIPE SIZE 


INSIDE 
DIAMETER 

(inches) 


LENGTH 


MINIMUM WEIGHT EACH 


(inches) 


(inches) 


pounds 


ounces 


2 


2Va 




1 





3 


m 




1 


12 


4 


4'/4 




2 


8 



For SI units: 1 inch = 25 mm, 1 pound - 0.453 kg, 1 ounce = 0.02834 kg 



TABLE 701.5 
SOLDERING BUSHINGS 



PIPE 
SIZE 
(inches) 


MINIMUM WEIGHT 
EACH 


PIPE 
SIZE 
(inches) 


MINIMUM WEIGHT 
EACH 


pounds 


ounces 


pounds 


ounces 


VA 





6 


2 l A 


1 


6 


V/2 





8 


3 


2 





2 





14 


4 


3 


8 



For SI units: 1 inch = 25 mm, 1 pound = 0.453 kg, 1 ounce - 0.02834 kg 



2013 CALIFORNIA PLUMBING CODE 



DECEMBER 7, 2013 SUPPLEMENT 
Rl IIP 



153 



SANITARY DRAINAGE 



TABLE 701.1 

MATERIALS FOR DRAIN, WASTE, VENT PIPE AND FITTINGS 



MATERIAL 


uiXL/crt uriuunu 
DRAIN, WASTE, 
VENT PIPE AND 
FITTINGS 


MDU V tUnUUPIU 

DRAIN, WASTE, 
VENT PIPE AND 
FITTINGS 


BUILDING SEWER 
PIPE AND 
FITTINGS 


REFERENCED 
STANDARD(S) PIPE 


REFERENCED 
STANDARD(S) 
FITTINGS 


Ado (oCneGUlC 


A 


A 


Y 

A. 


ASTM D 1527, 
ASTM D 2661, 
ASTM D 2680*, 
ASTM F 628 


ASTM D 2661, 
ASTM D 2680* 


Asbestos-Cement 






X 


ASTM C 14*, 
ASTM C 428* 




Brass 


— 


X 




ASTM B 43 


— 


Cast-iron 


X 


X 


X 


ASTM A 74, 
ASTM A 888, 
CISPI 301 


ASMEB16.12, 
ASTM A 74, 
ASTM A 888, 
CISPI 301 


Co-Extruded ABS (Schedule 
40) 


X 


X 


X 


ASTM F 1488 


ASTM D 2661, 
ASTM D 2680* 


Co-Extruded PVC (Schedule 
40) 


X 


X 


X 


ASTM F 891, 
ASTM F 1488 


ASTM D 2665, 
ASTM F 794*, 
ASTM F 1866 


Copper (Type DWV) 


X 


X 


X 


ASTM B 75, 
ASTM B 251, 
ASTM B 302, 
ASTM B 306 


ASMEB16.23, 
ASME B 16.29 


Galvanized Malleable Iron 




X 






ASME B 16.3 


Galvanized Steel 


— 


X 


— 


ASTM A 53 




Polyethylene 




— 


X 


ASTM F 714 


ASTM D 2683, 
ASTM D 3261, 
ASTM F 1055, 
Ab I M r ZlOu 


PVC (Schedule 40) 


X 


X 


X 


ASTM D 1785, 
ASTM D 2665, 
ASTM F 794* 


ASTM D 2665, 
ASTM F 794*, 
ASTM F 1866 


Stainless Steel 304 




X 




ASME A112.3.1 


ASME Al 12.3.1 


Stainless Steel316L 


X 


X 


X 


ASMEA1 12.3.1 


ASMEA112.3.1 


Vitrified Clay (Extra 
strength) 






X 


ASTM C 700 


ASTM C 700 



* For building sewer applications. 



154 



DECEMBER 7, 2013 SUPPLEMENT 
BLUE 



2013 CALIFORNIA PLUMBING CODE 



SANITARY DRAINAGE 



TABLE 702.1 
DRAINAGE FIXTURE UNIT VALUES (DFU) 



PLUMBING APPLIANCES, APPURTENANCES, OR FIXTURES 


MINIMUM SIZE TRAP 
AND TRAP ARM 7 
(inches) 


PRIVATE 


PUBLIC 


Aootn/IDLT 


Balhlub or Combination Ralh Shower 




2.0 


2.0 




Bidet 




1 .0 






Bidet 


i 


2.0 






Clothes Washer, domestic, standpipe 3 


2 


3.0 


3.0 


3.0 


Dental Unit, cuspidor 






1.0 


1 .0 


Dishwasher, domestic, with independent drain 1 Vi 


2.0 


2 


2.0 


Drinking Fountain or Water Cooler 


l'/4 


0.5 


0.5 


1.0 


Food Waste Grinder, commercial 


2 




3.0 


3.0 


Floor Drain, emergency 


2 




0.0 


0.0 


Floor Drain (for additional sizes see Section 702.0) 


2 


2.0 


2.0 


2.0 


Shower, single- head trap 


2^ 


2.0 


2.0 


2.0 


M ul ti-head. each additional 


2 


1.0 


1.0 


1 .0 


Lavatory, single 


l'/4 


1.0 


1.0 


1 .0 


Lavatory , in sets of two or th ree 


1 Vl 


2.0 


2.0 


2.0 j 


Washfountain 


l'/2 


. , 


2.0 


2.0 


Wash fountain 


2 




3.0 


3.0 


Mobile Home, trap" 


3 


12 






Receptor, indirect waste 


1 '/:._. 




See footnote 1 ' 




Receptor, indirect waste 1,4 


2 




See footnote 1 ' 4 




Receptor, indirect waste 1 


_ 3 . 




See footnote 1 




Sinks 










Bar 


Wi 


1.0 






Bar 2 1 




2.0 


2.0 


Clinical 


3 




6.0 


6.0 


Commercial w ith food \vaste~ 


V/2 




3.0 


3.0 


Special Purpose" 


V/l 


2.0 


3.0 


3.0 


Special Purpose 


2 


3.0 


4.0 


4.0 


Special Purpose 


3 




6.0 


6.0 


Kitchen, domestic 2 

(with or without food waste grinder, dishwasher, or both) 


1 Vi 


2.0 


2.0 


i 


Laundry 2 (with or without discharge from a clothes washer) 


V/l 


2.0 


2 


2.0 


Service or Mop Basin 


2 




3.0 


3.0 


Service or Mop Basin 


3 




3.0 


3.0 


Service. Hushing rim 


_ 3 




6.0 


6.0 


Wash, each set of faucets 






2.0 


2.0 


Urinal, integral trap 1.0 GPF 2 


2 


2.0 


2.0 


5.0 


Urinal, integral trap greater than 1.0 GPF 


2 


2,0 


2.0 


6.0 


Urinal, exposed trap 2 


1 \h 


2.0 


2.0 


5.0 


Water Closet, 1 .6 GPF Gravity l ank 6 


3 _ 


3.0 


4.0 


6.0 


Water Closet, 1.6 GPF Flushometer Tank 6 


3 


3.0 


4.0 


6.0 


Water Closet, 1 .6 GPF Flushometer Valve 6 


3 


3.0 


4.0 


6.0 


Water Closet, greater than 1 .6 GPF Gravity Tank ' 


3 


4.0 


6.0 


8.0 


Water Closet, greater than 1.6 GPF Flushometer Valve 6 


3 


4.0 


6.0 


8.0 



For SI units: 1 inch = 25 mm 
Notes: 

1 Indirect waste receptors shall be sized based on the total drainage capaeiiy of the fixtures that drain therein to, in accordance with Table 702.2(b). 

2 Provide a 2 inch (50 mm) minimum drain. 

J For refrigerators, coffee urns, water stations, and similar low demands. 

4 For commercial sinks, dishwashers, and similar moderate or heavy demands. 

3 Buildings having a clothes-washing area with clothes washers in a battery of three or more clothes washers shall be rated at 6 fixture units each for 
purposes of sizing common horizontal and vertical drainage piping. 

6 Water closets shall be computed as 6 fixture units where determining septic tank sizes based on Appendix H of this code. 

7 Trap sizes shall not be increased to the point where the fixture discharge is capable of being inadequate to maintain their self-scouring properties. 

8 Assembly [Public Use (see Table 422.1)]. 

9 [BCD 2/ For drainage fixture unit values related to mobilehome parks in all parts of the State of California, see California Code of Regulations, Title 25, 
Division I, Chapter 2, Article 5, Section 1268. For drainage fixture unit values related to special occupancy parks in all parts of the State of California, 
see California Code of Regulations, Title 25, Division 1, Chapter 2.2, Article 5, Section 2268. 



2013 CALIFORNIA PLUMBING CODE 



155 



SANITARY DRAINAGE 



TABLE 702.2(a) 



MAXIMUM DRAINAGE FIXTURE UNITS FOR A 
TRAP AND TRAP ARM* 


SIZE OF TRAP AND 
TRAP ARM (inches) 


DRAINAGE FIXTURE 
UNIT VALUES (DFU) 


1 '/4 


1 unit 


W: 


3 units 


2 


4 units 


3 


6 units 


4 


8 units 


l or $1 Units: 1 inch = 25 mm 

* Exception: On self-service laundri 


es. 


TABLE 702.2(b) 
DISCHARGE CAPACITY SN GALLONS PER MINUTE FOR 
INTERMITTENT FLOW ONLY* 


GPM 


FIXTURE UNITS 


Up 10 7' : 


Equals 1 Fixture Unit 


Greater than iVi to 1 5 


Equals 2 Fixture Units 


Greater than 15 to 30 : 


Equals 4 Fixture Units 


Greater than 30 to 50 1 


Equals 6 Fixture Units 



For SI units: I gallon per minute = 0.06 E/s 

* Discharge capacity exceeding 50 gallons per minute (3.15 Es) shall be 
determined by the Authority Having Jurisdiction. 



703.0 Size of Drainage Piping. 

703.1 Minimum Size. The minimum sizes of vertical, hori- 
zontal, or both drainage piping shall be determined from 
the total of fixture units connected thereto, and additionally, 
in the case of vertical drainage pipes, in accordance with 
their length. 

703.2 Maximum Number of Fixture Units. Table 703.2 
shows the maximum number of fixture units allowed on a 
vertical or horizontal drainage pipe, building drain, or 
building sewer of a given size; the maximum number of 
fixture units allowed on a branch interval of a given size; 
and the maximum length (in feet and meters) of a vertical 
drainage pipe of a given size. 

703.3 Sizing per Appendix C. For alternate method of 
sizing drainage piping, see Appendix C. 

704.0 Fixture Connections (Drainage). 

704.1 Inlet Fittings. Drainage piping shall be provided 
with approved inlet fittings for fixture connections, 
correctly located according to the size and type of fixture 
proposed to be connected. 

704.2 Single Vertical Drainage Pipe. Two fixtures set 
back-to-back, or side-by-side, within the distance allowed 
between a trap and its vent shall be permitted to be served 
by a single vertical drainage pipe provided that each fixture 
wastes separately into an approved double-fixture fitting 
having inlet openings at the same level 

704.3 Commercial Dishwashing Machines and Sinks. 
Pot sinks, scullery sinks, dishwashing sinks, silverware 
sinks, commercial dishwashing machines, silverware- 



washing machines, and other similar fixtures shall be 
connected directly to the drainage system. A floor drain 
shall be provided adjacent to the fixture, and the fixture 
shall be connected on the sewer side of the floor drain trap, 
provided that no other drainage line is connected between 
the floor drain waste connection and the fixture drain. The 
fixture and floor drain shall be trapped and vented in accor- 
dance with this code. 

705.0 Joints and Connections. 

705.1 ABS and ABS Co-Extruded Plastic Pipe and 
Joints. Joining methods for ABS plastic pipe and fittings 
shall be installed in accordance with the manufacturer's 
installation instructions and shall comply with Section 
705 . 1 . 1 through Section 705 . 1 .3 . 

705.1.1 Mechanical Joints. Mechanical joints shall be 
designed to provide a permanent seal and shall be of 
the mechanical or push-on joint. The push-on joint 
shall include an elastomeric gasket in accordance with 
ASTM D 3212 and shall provide a compressive force 
against the spigot and socket after assembly to provide 
a permanent seal . 

705.1.2 Solvent Cement Joints. Solvent cement joints 
for ABS pipe and fittings shall be clean from dirt and 
moisture. Pipe shall be cut square and shall be 
deburred. Where surfaces to be joined are cleaned and 
free of dirt, moisture, oil, and other foreign material, 
solvent cement in accordance with ASTM D 2235 shall 
be applied to all joint surfaces. Joints shall be made 
while both the inside socket surface and outside 
surface of pipe are wet with solvent cement. Hold joint 
in place and undisturbed for 1 minute after assembly. 

705.1.3 Threaded Joints. Threads shall comply with 
ASME Bl.20.1. A minimum of Schedule 80 shall be 
permitted to be threaded. Molded threads on adapter 
fittings for transition to threaded joints shall be 
permitted. Thread sealant compound shall be applied to 
male threads, insoluble in water, and nontoxic. The 
joint between the pipe and transition fitting shall be of 
the solvent cement type. Caution shall be used during 
assembly to prevent over tightening of the ABS 
components once the thread sealant compound has 
been applied. 

705.2 Asbestos-Cement Pipe and Joints. Joining methods 
for asbestos-cement pipe and fittings shall be installed in 
accordance with the manufacturer's installation instructions 
and shall comply with Section 705.2.1. 

705.2.1 Mechanical Joints. Mechanical joints shall be 
of the same composition as the pipe and sealed with an 
approved elastomeric gasket or joined by a listed 
compression type coupling. Elastoineric gaskets shall 
comply with ASTM D 1869. The coupling grooves, 
pipe ends, and elastomeric gaskets shall be cleaned. 
Elastomeric gaskets shall be positioned in the grooves. 
Lubricant recommended by the manufacturer shall be 
applied to the machined end of the pipe. Lubricant shall 
not be applied to the elastomeric gasket or groove, 
unless specifically recommended by the manufacturer. 



156 



2013 CALIFORNIA PLUMBING CODE 



SANITARY DRAINAGE 



TABLE 703.2 

MAXIMUM UNIT LOADING AND MAXIMUM LENGTH OF DRAINAGE AND VENT PIPING 



SIZE OF PIPE (inches) 


1 1 /4 


1 1 /2 


2 


2 1 /2 


3 


4 


5 


6 


8 


10 


12 


Maximum Units 

Drainage Piping 1 
Vertical 
Horizontal 


I 

1 


2 

1 


16 

8 3 


j2 
14 3 


48 4 
35 4 


256 
2 1 6 5 


600 
428" 


1 380 
720 5 


3600 
2640 5 


5600 
4680 5 


8400 
8200 5 


Maximum Length 

Drainage Piping 
Vertical, (feet) 
Horizontal (unlimited) 


45 


65 


85 


148 


212 


300 


390 


510 


750 






Vent Piping 

Horizontal and Vertical 6 
Maximum Units 
Maximum Lengths, (feet) 


1 

45 


8 3 
60 


24 
120 


48 
180 


84 
212 


256 
300 


600 
390 


1380 
510 


3600 
750 







For SI units: 1 inch = 25 mm, 1 foot = 304.8 mm 
Notes: 

1 Excluding trap arm. 
Except sinks, urinals, and dishwashers - exceeding 1 fixture unit. 
Except six-unit traps or water closets. 

4 Only four water closets or six-unit traps allowed on a vertical pipe or stack; and not to exceed three water closets or six-unit traps on a horizontal branch 
or drain. 

3 Based on Va inch per foot (20.8 mm/m) slope. For !/« of an inch per foot (10.4 mm/m) slope, multiply horizontal "fixture units by a factor of 0.8. 

6 The diameter of an individual vent shall be not less than VA inches (32 mm) nor less than one-half the diameter of the drain to which it is connected. 
Fixture unit load values for drainage and vent piping shall be computed from Table 702.1 and Table 702.2(b). Not to exceed one-third of the total 
permitted length of a vent shall be permitted to be installed in a horizontal position. Where vents are increased one pipe size for their entire length, the 
maximum length limitations specified in this table do not apply. This table is in accordance with the requirements of Section 901 .2. 



705.3 Brass Pipe and Joints. Joining methods for brass 
pipe and fittings shall be installed in accordance with the 
manufacturer's installation instructions and shall comply 
with Section 705.3. 1 through Section 705.3.3. 

705.3 J Brazed Joints. Brazed joints between brass 
pipe and fittings shall be made with brazing alloys 
having a liquid temperature above 1000°F (538°C). 
The joint surfaces to be brazed shall be cleaned bright 
by either manual or mechanical means. Pipe shall be 
cut square and reamed to full inside diameter. Brazing 
flux shall be applied to the joint surfaces where 
required by manufacturer's recommendation. Brazing 
filler metal in accordance with AWS A5.8 shall be 
applied at the point where the pipe or tubing enters the 
socket of the fitting. 

705.3.2 Mechanical Joints. Mechanical joints shall be 
of the compression type using an elastomeric gasket to 
form a seal. 

705.3.3 Threaded Joints. Threaded joints shall be 
made with pipe threads in accordance with ASME 
B 1.20.1. Thread sealant tape or compound shall be 
applied only on male threads, and such material shall 
be of approved types, insoluble in water, and nontoxic. 

705.4 Cast-iron Pipe and Joints. Joining methods for 
cast-iron pipe and fittings shall be installed in accordance 
with the manufacturer's installation instructions and shall 
comply with Section 705.4.1 and Section 705.4.2. 

705.4.1 Caulked Joints. Caulked joints shall be firmly 
packed with oakum or hemp and filled with molten 
lead to a depth of not less than 1 inch (25.4 mm) in one 
continuous pour. The lead shall be caulked thoroughly 



at the inside and outside edges of the joint. After 
caulking, the finished joint shall not exceed '/s of an 
inch (3.2 mm) below the rim of the hub. No paint, 
varnish, or other coatings shall be permitted on the 
joining material until after the joint has been tested and 
approved. 

705.4.2 Mechanical Joints. Mechanical joints for cast- 
iron pipe and fittings shall be of the compression or 
mechanical joint coupling type. Compression type 
joints with an elastomeric gasket for cast-iron hub and 
spigot pipe shall comply with ASTM C 564. Hub and 
spigot shall be clean and free of dirt, mud, sand, and 
foreign materials. Cut pipe shall be free from sharp 
edges. Fold and insert gasket into hub. Lubricate the 
joint following manufacturer's instructions, insert 
spigot into hub until the spigot end of the pipe bottom 
out in the hub. Use the same procedure for the installa- 
tion of fittings. 

A mechanical joint shielded coupling type for 
hubless cast-iron pipe and fittings shall have a metallic 
shield where installed aboveground, and shall comply 
with ASTM A 1056, ASTM C 1277, ASTM C 1540, 
or CISPI 310. The elastomeric gasket shall comply 
with ASTM C 564. Hubless cast-iron pipe and fittings 
shall be clean and free of dirt, mud, sand, and foreign 
materials. Cut pipe shall be free from sharp edges. 
Gasket shall be placed on the end of the pipe or fitting 
and the stainless steel shield and clamp assembly on 
the end of the other pipe or fitting. Pipe or fittings shall 
be seated against the center stop inside the elastomeric 
sleeve. Slide the stainless steel shield and clamp 



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assembly into position centered over the gasket and 
tighten. Bands shall be tightened using an approved 
calibrated torque wrench specifically set by the manu- 
facturer of the coupl ings. 

705.5 Copper Pipe (DWV) and joints. Joining methods for 
copper pipe and fittings shall be installed in accordance with 
the manufacturer's installation instructions and shall comply 
with Section 705.5.1 through Section 705.5.4. 

705.5.1 Brazed Joints. Brazed joints between copper 
pipe and fittings shall be made with brazing alloys 
having a liquid temperature above 1000°F (538°C). 
The joint surfaces to be brazed shall be cleaned bright 
by either manual or mechanical means. Piping shall be 
cut square and reamed to full inside diameter. Brazing 
flux shall be applied to the joint surfaces where 
required by manufacturer's recommendation. Brazing 
filler metal in accordance with AWS A5.8 shall be 
applied at the point where the pipe or tubing enters the 
socket of the lilting. 

705.5.2 Mechanical Joints. Mechanical joints in 
copper piping shall be made with a mechanical 
coupling with grooved end piping or approved joint 
designed for the specific application. 

705.5.3 Soldered Joints. Soldered joints between 
copper pipe and fittings shall be made in accordance 
with AST.M B 828 with the following sequence of joint 
preparation and operation as follows: measuring and 
cutting, reaming, cleaning, fluxing, assembly and 
support, heating, applying the solder, cooling, and 
cleaning. Pipe shall be cut square and reamed to the 
full inside diameter including the removal of burrs on 
the outside of the pipe. Surfaces to be joined shall be 
cleaned bright by manual or mechanical means. Flux 
shall be applied to pipe and fittings and shall be in 
accordance with ASTM B 813, and shall become 
noncorrosive and nontoxic after soldering. Insert pipe 
into the base of the fitting and remove excess flux. 
Pipe and fitting shal l be supported to ensure a uniform 
capillary space around the joint. Heat shall be applied 
using an air or fuel torch with the flame perpendicular 
to the pipe using acetylene or an LP gas. Preheating 
shal l depend on the size of the joint. The name shall be 
moved to the fitting cup and alternate between the pipe 
and fitting. Solder in accordance with ASTM B 32 
shall be applied to the joint surfaces until capillary 
action draws the molten solder into the cup. Joint 
surfaces shall not be disturbed until cool and any 
remaining flux residue shall be cleaned. 

705.5.4 Threaded Joints. Threaded joints for copper 
pipe shall be made with pipe threads in accordance 
with ASME Bl .20.1 . Thread sealant tape or compound 
shall be applied only on male threads, and such mate- 
rial shall be approved types, insoluble in water, and 
nontoxic. 

705.6 Galvanized Steel Pipe and Joints. Joining methods 
for galvanized steel pipe and fittings shall be installed in 
accordance with the manufacturer's installation instructions 
and shall comply with Section 705.6.1 and Section 705.6.2. 



705.6.1 Mechanical Joints. Mechanical joints shall be 
made with an elastomeric gasket. 

705.6.2 Threaded Joints. Threaded joints shall be 
made with pipe threads in accordance with ASME 
B 1.20.1. Thread sealant tape or compound shall be 
applied only on male threads, and such material shall 
be of approved types, insol uble in water, and nontoxic. 

705.7 PVC and PVC Co-Extruded Plastic Pipe and 
Joining Methods. Joining methods for PVC plastic pipe 
and fittings shall be installed in accordance with the manu- 
facturer- s installation instructions and shall comply with 
Section 705.7.1 through Section 705.7.3. 

705.7.1 Mechanical Joints. Mechanical joints shall be 
designed to provide a permanent seal and shall be of 
the mechanical or push-on joint type. The push-on 
joint shall include an elastomeric gasket in accordance 
with ASTM D 3212 and shall provide a compressive 
force against the spigot and socket after assembly to 
provide a permanent seal. 

705.7.2 Solvent Cement Joints. Solvent cement joints 
for PVC pipe and fittings shall be clean from dirt and 
moisture. Pipe shall be cut square and pipe shall be 
deburred. Where surfaces to be joined are cleaned and 
free of dirt, moisture, oil, and other foreign material, 
apply primer purple in color in accordance with ASTM 
F 656. Primer shall be applied until the surface of the 
pipe and fitting is softened. Solvent cements in accor- 
dance with ASTM D 2564 shall be applied to all joint 
surfaces. Joints shall be made while both the inside 
socket surface and outside surface of pipe are wet with 
solvent cement. Hold joint in place and undisturbed for 
1 minute after assembly. 

705.7.3 Threaded Joints. Threads shall comply with 
ASME Bl.20.1. A minimum of Schedule 80 shall be 
permitted to be threaded. Molded threads on adapter 
fittings for transition to threaded joints shall be 
permitted. Thread sealant compound that is compatible 
with the pipe and fitting, insoluble in water, and 
nontoxic shall be applied to male threads. The joint 
between the pipe and transition fitting shall be of the 
solvent cement type. Caution shall be used during 
assembly to prevent over tightening of the PVC 
components once the thread sealant has been applied. 
Female PVC threaded fittings shall be used with plastic 
male threads only. 

705.8 Stainless Steel Pipe and Joints, Joining methods for 
stainless steel pipe and fittings shall be installed in accor- 
dance with the manufacturer's installation instructions and 
shall comply with Section 705.8.1 and Section 705.8.2. 

705.8.1 Mechanical Joints. Mechanical joints between 
stainless steel pipe and fittings shal l be of the compres- 
sion, grooved coupling, hydraulic pressed fittings, or 
flanged. 

705.8.2 Welded Joints. Welded joints between stain- 
less steel pipe and fittings shall comply with ASME 
Al 12.3.1 and shall be welded autogenously. Pipe shall 
be cleaned, free of scale and contaminating particles. 
Pipe shall be cut with a combination cutting and 



158 



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beveling tool that provides a square cut, and free of 
burrs. Mineral oil lubricant shall be used during the 
cutting and beveling process. 

705.9 Vitrified Clay Pipe and Joints. Joining methods for 
vitrified clay pipe and fittings shall be installed in accor- 
dance with the manufacturer's installation instructions and 
shall comply with Section 705.9.1. 

705.9.1 Mechanical Joints. Mechanical joints shall be 
designed to provide a permanent seal and shall be of 
the mechanical or push-on joint type. The push-on 
joint shall include an elastomeric gasket in accordance 
with ASTM C 425 and shall provide a compressive 
force against the spigot and socket after assembly to 
provide a permanent seal. 

705.10 Special Joints. 

705.10.1 Slip Joints. In fixture drains and traps, slip 
joints of approved materials shall be permitted to be 
used in accordance with their approvals. 

705.10.2 Expansion Joints. Expansion joints shall be 
accessible, except where in vent piping or drainage 
stacks, and shall be permitted to be used where neces- 
sary to provide for expansion and contraction of the 
pipes. 

705.10.3 Ground Joint, Flared, or Ferrule Connec- 
tions. Brass or copper ground joint, flared, or ferrule- 
type connections that allow adjustment of tubing, but 
provide a rigid joint where made up, shall not be 
considered as slip joints. 

705.10.4 Transition Joint. A solvent cement transition 
joint between ABS and PVC building drain and 
building sewer shall be made using listed transition 
solvent cement. [HCD 1 & HCD 2] Plastic pipe and 
fittings joined with solvent cement shall utilize Low 

VOC primer (s), if a primer is required, and Lo w VOC 
solvent cement(s) as defined in Section 214.0. 

705.1 1 Joints Between Various Materials, joints between 
various materials shall be installed in accordance with the 
manufacturer's installation instructions and shall comply 
with Section 705.1 1.1 through Section 705.1 1.4. 

705.11.1 Copper Pipe to Cast-iron Pipe. Joints from 
copper pipe or tubing to cast-iron pipe shall be made 
with a listed compression type joint or brass ferrule. 
The copper pipe or tubing shall be soldered or brazed 
to the ferrule and the ferrule shall be joined to the cast- 
iron hub by a compression or caulked joint. 

705.11.2 Copper Pipe to Threaded Pipe Joints. 
Joints from copper pipe or tubing to threaded pipe shall 
be made by the use of a listed brass adapter or dielec- 
tric fitting. The joint between the copper pipe and the 
fitting shall be a soldered or brazed, and the connection 
between the threaded and the fittings shall be made 
with a standard pipe size threaded joint. 

705.11.3 Plastic Pipe to Other Materials. Where 
connecting plastic pipe to other types of plastic or 
other types of piping material; approved listed adapter 
or transition fittings and listed for the specific transi- 
tion intended shal l be used. 



705.11.4 Stainless Steel Pipe to Other Materials. 
Where connecting stainless steel pipe to other types of 
piping, listed mechanical joints of the compression 
type and listed for the specific transition intended shall 
be used. 

706.0 Changes in Direction of Drainage Flow. 

706.1 Approved Fittings. Changes in direction of drainage 
piping shall be made by the appropriate use of approved 
fittings and shall be of the angles presented by a one- 
sixteenth bend, one-eighth bend, or one-sixth bend, or other 
approved fittings of equivalent sweep. 

706.2 Horizontal to Vertical. Horizontal drainage lines, 
connecting with a vertical stack, shall enter through 45 
degree (0.79 rad) wye branches, 60 degree (1.05 rad) wye 
branches, combination wye and one-eighth bend branches, 
sanitary tee or sanitary tapped tee branches, or other 
approved fittings of equivalent sweep. No fitting having 
more than one inlet at the same level shall be used unless 
such fitting is constructed so that the discharge from one 
inlet cannot readily enter any other inlet. Double sanitary 
tees shall be permitted to be used where the barrel of the 
fitting is not less than two pipe sizes larger than the largest 
inlet, (pipe sizes recognized for this purpose are 2 inches, 
2/2 inches, 3 inches, 3/2 inches, 4 inches, 4/2 inches, 5 
inches, 6 inches, etc.) (50, 65, 80, 90, 100, 115, 125, 150 
mm, etc.). 

706.3 Horizontal to Horizontal. Horizontal drainage lines 
connecting with other horizontal drainage lines shall enter 
through 45 degree (0.79 rad) wye branches, combination 
wye and one-eighth bend branches, or other approved 
fittings of equivalent sweep. 

706.4 Vertical to Horizontal. Vertical drainage lines 
connecting with horizontal drainage lines shall enter 
through 45 degree (0.79 rad) wye branches, combination 
wye and one-eighth bend branches, or other approved 
fittings of equivalent sweep. Branches or offsets of 60 
degrees (1.05 rad) shall be permitted to be used where 
installed in a true vertical position. 

707.0 Cleanouts. 

707.1 Plug. Each cleanout fitting for cast-iron pipe shall 
consist of a cast-iron or brass body and an approved plug. 
Each cleanout for galvanized wrought-iron, galvanized 
steel, copper, or brass pipe shall consist of a brass plug as 
specified in Table 707.1, or a standard weight brass cap, or 
an approved ABS or PVC plastic plug, or an approved 
stainless steel cleanout or plug. Plugs shall have raised 
square heads or approved countersunk rectangular slots. 

707.2 Approved. Each cleanout fitting and each cleanout 
plug or cap shall be of an approved type. 

707.3 Gas and Watertight. Cleanouts shall be designed to 
be gas- and watertight. 

707.4 Location. Each horizontal drainage pipe shall be 
provided with a cleanout at its upper terminal, and each run 
of piping, that is more than 100 feet (30 480 mm) in total 
developed length, shall be provided with a cleanout for 



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TABLE 707.1 
CLEANOUTS 


SIZE OF PIPE 
(inches) 


SIZE OF CLEANOUT 
(inches) 


THREADS 
(per inches) 


V/2 


l Vi 


111: 


2 ! 


I Vi 


] I 


\ VA 


V/i 


8 


3 


2 '/2 


8 


4 & larger 


3'/: 


8 



For SI units: l inch = 25 mm 



each 1 00 feet (30 480 mm), or fraction thereof, in length of 
such piping. An additional cleanout shall be provided in a 
drainage line for each aggregate horizontal change of direc- 
tion exceeding I 35 degrees (2.36 rad). 

Exceptions: 

(1) Cleanouts shall be permitted to be omitted on a hori- 
zontal drain line less than 5 feet (1524 mm) in length 
unless such line is serving sinks or urinals. 

(2) Cleanouts shall be permitted to be omitted on a hori- 
zontal drainage pipe installed on a slope of 72 degrees 
(1.26 rad) or less from the vertical angle (one-fifth 
bend). 

(3) Excepting the building drain and its horizontal 
branches, a cleanout shall not be required on a pipe or 
piping that is above the floor level of the lowest floor 
of the building. 

(4) An approved type of two-way cleanout fitting, installed 
inside the building wall near the connection between 
the building drain and the building sewer or installed 
outside of a building at the lower end of a building 
drain and extended to grade, shall be permitted to be 
substituted for an upper terminal cleanout. 

707.5 Cleaning. Each cleanout shall be installed so that it 
opens to allow cleaning in the direction of flow of the soil 
or waste or at right angles thereto and, except in the case of 
wye branch and end-of-line cleanouts, shall be installed 
vertically above the flow line of the pipe. 

707.6 Extension. Each cleanout extension shall be consid- 
ered as drainage piping and each 90 degree (1.57 rad) 
cleanout extension shall be extended from a wye-type 
fitting or other approved fitting of equivalent sweep. 

707.7 Interceptor. Each cleanout for an interceptor shall 
be outside of such interceptor. 

707.8 Access. Each cleanout, unless installed under an 
approved cover plate, shall be above grade, readily acces- 
sible, and so located as to serve the purpose for which it is 
intended. Cleanouts located under cover plates shall be so 
installed as to provide the clearances and accessibility 
required by this section. 

707.9 Clearance. Each cleanout in piping 2 inches (50 
mm) or Jess in size shall be so installed that there is a clear- 
ance of not less than 12 inches (305 mm) in front of the 
cleanout. Cleanouts in piping exceeding 2 inches (50 mm) 
shall have a clearance of not less than 18 inches (457 mm) 



in front of the cleanout. Cleanouts in under-floor piping 
shall be extended to or above the finished floor or shall be 
extended outside the building where there is Jess than 18 
inches (457 mm) vertical overall, allowing for obstructions 
such as ducts, beams, and piping, and 30 inches of (762 
mm) horizontal clearance from the means of access to such 
cleanout. No under-floor cleanout shall be located 
exceeding 20 feet (6096 mm) from an access door, trap 
door, or crawl hole. 

707.10 Fittings. Cleanout fittings shall be not less in size 
than those given in Table 707.1 . 

707.11 Pressure Drainage Systems. Cleanouts shall be 
provided for pressure drainage systems as classified under 
Section 710.7. 

707.12 Countersunk Cleanout Plugs. Countersunk 
cleanout plugs shall be installed where raised heads cause a 
hazard. 

707.13 Hubless Blind Plugs. Where a hubless blind plug is 
used for a required cleanout, the complete coupling and 
plug shall be accessible for removal or replacement. 

707.14 Trap Arms. Cleanouts for trap arms shall be 
installed in accordance with Section .1002.3. 

708.0 Grade of Horizontal Drainage Piping. 

708.1 General. Horizontal drainage piping shall be run in 
practical alignment and a uniform slope of not less than Va 
inch per foot (20.8 mm/m) or 2 percent toward the point of 
disposal provided that, where it is impractical due to the 
depth of the street sewer, to the structural features, or to the 
arrangement of a building or structure to obtain a slope of 
74 inch per foot (20.8 mm/m) or 2 percent, such pipe or 
piping 4 inches (100 mm) or larger in diameter shall be 
permitted to have a slope of not less than ] /g inch per foot 
(10.4 mm/m) or 1 percent, where first approved by the 
Authority Having Jurisdiction. 

709.0 Gravity Drainage Required. 

709.1 General. Where practicable, plumbing fixtures shall 
be drained to the public sewer or private sewage disposal 
system by gravity. 

710.0 Drainage of Fixtures Located Below the Next 
Upstream Manhole or Below the Main Sewer Level 

710.1 Backflow Protection. Fixtures installed on a floor I 
level that is lower than the next upstream manhole cover of 
the public or private sewer shall be protected from back- I 
flow of sewage by installing an approved type of backwater 
valve. Fixtures on such floor level that are not below the I 
next upstream manhole cover shall not be required to be I 
protected by a backwater valve. Fixtures on floor levels | 
above such elevation shall not discharge through the back- 
water valve. Cleanouts for drains that pass through a back- 
water valve shall be clearly identified with a permanent 
label stating "backwater valve downstream". 

710.2 Sewage Discharge. Drainage piping serving fixtures 
that are located below the crown level of the main sewer 



160 



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SANITARY DRAINAGE 



shall discharge into an approved watertight sump or 
receiving tank, so located as to receive the sewage or 
wastes by gravity. From such sump or receiving tank, the 
sewage or other liquid wastes shall be lifted and discharged 
into the building drain or building sewer by approved ejec- 
tors, pumps, or other equally efficient approved mechanical 
devices. 

710.3 Sewage Ejector and Pumps. A sewage ejector or 
sewage pump receiving the discharge of water closets or 
urinals: 

( 1 ) Shall have a discharge capacity of not less than 20 gpm 
(1.26 L/s). 

(2) In single dwelling units, the ejector or pump shall be 
capable of passing a V/i inch (38 mm) diameter solid 
ball, and the discharge piping of each ejector or pump 
shall have a backwater valve and gate valve, and be not 
less than 2 inches (50 mm) in diameter. 

(3) In other than single-dwelling units, the ejector or pump 
shall be capable of passing a 2 inch (51 mm) diameter 
solid ball, and the discharge piping of each ejector or 
pump shall have a backwater valve and gate valve, and 
be not less than 3 inches (80 mm) in diameter. 

710.3.1 fHCD 1 & HCD 2/ The minimum size of any 
pump or any discharge pipe from a sump having a water 
closet connected thereto shall be not less than (2) inches 
(50 mm). 

710.4 Discharge Line. The discharge line from such 
ejector, pump, or other mechanical device shall be provided 
with an accessible backwater or swing check valve and gate 
or ball val ve. Where the gravity drainage line to which such 
discharge line connects is horizontal, the method of connec- 
tion shall be from the top through a wye branch fitting. The 
gate or ball valve shall be located on the discharge side of 
the backwater or check valve. 

Gate or ball valves, where installed in drainage piping, 
shall be fill J. way type with working parts of corrosion-resis- 
tant metal. Sizes 4 inches (100 mm) or more in diameter 
shall have cast-iron bodies, and sizes less than 4 inches 
(100 mm), cast-iron or brass bodies. 

710.5 Size of Building Drains and Sewers. Building 
drains or building sewers receiving discharge from a pump 
or ejector shall be adequately sized to prevent overloading. 
Two fixture units shall be allowed for each gallon per 
minute (0.06 L/s) of flow. 

710.6 Backwater Valves. Backwater valves, gate valves, 
fullway ball valves, unions, motors, compressors, air tanks, 
and other mechanical devices required by this section shall 
be located where they will be accessible lor inspection and 

I repair and, unless continuously exposed, shall be enclosed 
in a masonry pit fitted with an adequately sized removable 
cover. 

Backwater valves shall have bodies of cast-iron, 
plastic, brass, or other approved materials; shall have 
noncorrosive bearings, seats, and self-aligning discs; and 
shall be constructed so as to ensure a positive mechanical 
seal. Such backwater valves shall remain open during 
periods of low flows to avoid screening of solids and shall 



not restrict capacities or cause excessive turbulence during 
peak loads. Unless otherwise listed, valve access covers 
shall be bolted type with gasket, and each valve shall bear 
the manufacturer's name cast into the body and the cover. 

710.7 Drainage and Venting Systems. The drainage and 
venting systems, in connection with fixtures, sumps, 
receiving tanks, and mechanical waste-lifting devices, shall 
be installed under the same requirements as provided for in 
this code for gravity systems. 

710.8 Sump and Receiving Tank Construction. Sumps 
and receiving tanks shall be watertight and shall be 
constructed of concrete, metal, or other approved materials. 
Where constructed of poured concrete, the walls and 
bottom shall be adequately reinforced and designed to 
recognized acceptable standards. Metal sumps or tanks shall 
be of such thickness as to serve their intended purpose and 
shall be treated internally and externally to resist corrosion. 

710.9 Alarm. Such sumps and receiving tanks shall be 
automatically discharged and, where in a "public use" 
occupancy, shall be provided with dual pumps or ejectors 
arranged to function alternately in normal use and indepen- 
dently in case of overload or mechanical failure. The 
pumps shall have an audio and visual alarm, readily acces- 
sible, that signals pump failure or an overload condition. 
The lowest inlet shall have a clearance of not less than 2 
inches (51 mm) from the high-water or "starting" level of 
the sump. 

710.10 Sump and Receiving Tank Covers and Vents. 
Sumps and receiving tanks shall be provided with substan- 
tial covers having a bolt-and-gasket- type manhole or 
equivalent opening to permit access for inspection, repairs, 
and cleaning. The top shall be provided with a vent pipe 
that shall extend separately through the roof or, where 
permitted, be combined with other vent pipes. Such vent 
shall be large enough to maintain atmospheric pressure 
within the sump under normal operating conditions and, in 
no case, shall be less in size than that required by Table 
703.2 for the number and type of fixtures discharging into 
the sump, nor less than 1 Vi inches (40 mm) in diameter. 
Where the foregoing requirements are met and the vent, 
after leaving the sump, is combined with vents from 
fixtures discharging into the sump, the size of the combined 
vent need not exceed that required for the total number of 
fixtures discharging into the sump. No vent from an air- 
operating sewage ejector shall combine with other vents. 

710.11 Air Tanks. Air tanks shall be so proportioned as to 
be of equal cubical capacity to the ejectors connected there- 
with in which there shall be maintained an air pressure of 
not less than 2 pounds per foot (lb/ft) (3 kg/m) of height the 
sewage is to be raised. No water-operated ejectors shall be 
permitted. 

710.12 Grinder Pump Ejector. Grinder pumps shall be 
permitted to be used. 

710.12.1 Discharge Piping. The discharge piping shall 
be sized in accordance with the manufacturer's instal- 
lation instructions and shall be not less than 1 l A inches 
(32 mm) in diameter. A check valve and full way-type 
shutoff valve shall be located within the discharge line. 



2013 CALIFORNIA PLUMBING CODE 



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710.13 Macerating Toilet Systems. Listed macerating 
toilet systems shall be permitted as an alternate to a sewage 
pump system where approved by the Authority Having 
Jurisdiction, 

7 1 0.13.1 Sumps. The sump shall be water- and 
gastight. 

710.13.2 Discharge Piping. The discharge piping shall 
be sized in accordance with manufacturer's instruc- 
tions and shall be not less than 3 A of an inch (20 mm) 
in diameter. The developed length of the discharge 

1 piping shall not exceed the manufacturer's instructions. 
A check valve and full way-type shutoff valve shall be 
located within the discharge line or internally within 
the device. 

710.13.3 Venting. The plumbing fixtures that 
discharge into the macerating device shall be vented in 
accordance with this code. The sump shall be vented in 
accordance with the manufacturer's instructions and 
such vent shall be permitted to connect to the fixture 
venting. 

711.0 Suds Relief. 

711.1 General. Drainage connections shall not be made 
into a drainage piping system within 8 feet (2438 mm) of a 
vertical to horizontal change of direction of a stack 
containing suds-producing fixtures. Bathtubs, laundries, 
washing machine stand pipes, kitchen sinks, and dish- 
washers shall be considered suds-producing fixtures. 
Where parallel vent slacks are required, they shall connect 
to the drainage stack at a point 8 feet (2438 mm) above the 
lowest point of the drainage stack. 

Exceptions: 

( 1 ) Single-family residences 

(2) Stacks receiving the discharge from less than three 
stories of plumbing fixtures 

712.0 Testing. 

712.1 Media. The piping of the plumbing, drainage, and 
venting systems shall be tested with water or air except that 
plastic pipe shall not be tested with air. The Authority 
Having Jurisdiction shall be permitted to require the 
removal of cl.ean.outs, etc., to ascertain whether the pressure 
has reached all parts of the system. After the plumbing 
fixtures have been set and their traps filled with water, they 
shall be submitted to a final test. 

712.2 Water Test. The water test shall be applied to the 
drainage and vent systems either in its entirety or in sections. 
Where the test is applied to the entire system, openings in the 
piping shall be tightly closed, except the highest opening, 
and the system filled with water to point of overflow. Where 
the system is tested in sections, each opening shall be tightly 
plugged, except the highest opening of the section under test, 
and each section shall be filled with water, but no section 
shall be tested with less than a 10 foot (3048 mm) head of 
water. In testing successive sections, not less than the upper 
10 feet (3048 mm) of the next preceding section shall be 



tested, so that no joint or pipe in the building (except the 
uppermost 10 feet (3048 mm) of the system) shall have been 
submitted to a test of less than a 10 foot (3048 mm) head of 
water. The water shall be kept in the system, or in the portion 
under test, for not less than 15 minutes before inspection 
starts. The system shall then be tight at points. 

712.3 Air Test. The air test shall be made by attaching an 
air compressor testing apparatus to a suitable opening and, 
after closing all other inlets and outlets to the system, forcing 
air into the system until there is a uniform gauge pressure of 
5 pounds-force per square inch (psi) (34 kPa) or sufficient to 
balance a column of mercury 10 inches (34 kPa) in height. 
The pressure shall be held without introduction of additional 
air for a period of not less than 1 5 minutes. 

Part II - Bnilding Sewers. 

713.0 Sewer Required. 

713.1 Where Required. A building in which plumbing 
fixtures are installed and premises having drainage piping 
thereon shall have a connection to a public or private sewer, 
except as provided in Section 101.8, Section 713.2, and 
Section 713.4. 

713.2 Private Sewage Disposal System. Where no public 
sewer intended to serve a lot or premises is available in a 
thoroughfare or right of way abutting such lot or premises, 
drainage piping from a building or works shall be 
connected to an approved private sewage disposal system. 

713.3 Public Sewer. Within the limits prescribed by 
Section 713.4 hereof, the rearrangement or subdivision into 
smaller parcels of a lot that abuts and is served by a public 
sewer shall not be deemed cause to permit the construction 
of a private sewage disposal system, and plumbing or 
drainage systems on a smaller parcel or parcels shall 
connect to the public sewer. 

713.4 Public Sewer Availability. The public sewer shall 
be permitted to be considered as not being available where 
such public sewer or a building or an exterior drainage 
facility connected thereto is located more than 200 feet (60 
960 mm) from a proposed building or exterior drainage 
facility on a lot or premises that abuts and is served by such 
public sewer. 

[HCD 1] For residential occupancies, the public sewer \\ 
may be considered as not being available by the Authority 
Having Jurisdiction. 

713.5 Permit. No permit shall be issued for the installation, 
alteration, or repair of a private sewage disposal system, or 
part thereof, on a lot for which a connection with a public 
sewer is available. 

713.6 Lot. On every lot or premises hereafter connected to 
a public sewer, plumbing and drainage systems or parts 
thereof on such lot or premises shall be connected with 
such public sewer. 

713.7 Installation. In cities, counties, or both where the i 
installation of building sewers is under the jurisdiction of a 
department other than the Authority Having Jurisdiction, 



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the provisions of this code relating to building sewers need 
not apply. 

Exception: Single-family dwellings and buildings or struc- 
tures accessory thereto, existing and connected to an 
approved private sewage disposal system prior to the time 
of connecting the premises to the public sewer shall be 
permitted, where no hazard, nuisance, or insanitary condi- 
tion is evidenced and written permission has been obtained 
from the Authority Having Jurisdiction, remain connected 
to such properly maintained private sewage disposal system 
where there is insufficient grade or fall to permit drainage 
to the sewer by gravity. 

714.0 Damage to Public Sewer or Private Sewage 
Disposal System. 

714.1 Unlawful Practices. It shall be unlawful for a person 
to deposit, by means whatsoever, into a plumbing fixture, 
floor drain, interceptor, sump, receptor, or device which is 
connected to a drainage system, public sewer, private 
sewer, septic tank, or cesspool, ashes; cinders; solids; rags; 
flammable, poisonous, or explosive liquids or gases; oils; 

| grease; and whatsoever that is capable of causing damage 
to the public sewer, private sewer, or private sewage 
disposal system. 

714.2 Prohibited Water Discharge. No rain, surface, or 
subsurface water shall be connected to or discharged into a 
drainage system, unless first approved by the Authority 
Having jurisdiction. 

714.3 Prohibited Sewer Connection. No cesspool, septic 
tank, seepage pit, or drain field shall be connected to a 
public sewer or to a building sewer leading to such public 
sewer. 

714.4 Commercial Food Waste Grinder. The Authority 
Having Jurisdiction shall review before approval, the instal- 
lation of a commercial food waste grinder connecting to a 
private sewage disposal system. 

714.5 Tanks. An approved-type, watertight sewage or 
wastewater holding tank, the contents of which, due to their 
character, shall be periodically removed and disposed of at 
some approved off-site location, shall be installed where 
required by the Authority Having Jurisdiction or the Health 
Officer to prevent anticipated surface or subsurface 
contamination or pollution, damage to the public sewer, or 
other hazardous or nuisance conditions. 

715.0 Building Sewer Materials. 

715.1 Materials. The building sewer, beginning 2 feet (610 
mm) from a building or structure, shall be of such materials 
as prescribed in this code. 

715.2 Joining Methods and Materials. Joining methods 
and materials shall be as prescribed in this code. 

715.3 Existing Sewers. Replacement of existing building 
sewer and building storm sewers using trench less method- 
ology and materials shall be installed in accordance with 

I ASTM F 1216. 



716.0 Markings. 

716.1 General. Pipe, brick, block, prefabricated septic 
tanks, prefabricated septic tank or seepage pit covers, or 
other parts or appurtenances incidental to the installation of 
building sewers or private sewage disposal systems shall be 
in accordance with the approval requirements of Chapter 3 
of this code. 

717.0 Size of Building Sewers. 

717.1 General. The minimum size of a building sewer 
shall be determined on the basis of the total number of 
fixture units drained by such sewer, in accordance with 
Table 717.1. No building sewer shall be smaller than the 
building drain. 

For alternate methods of sizing building sewers, see 
Appendix C. 

717.2 [AGR] Meat and Poultry Processing Plants. The 

sewer system shall have the capacity to remove all waste 
from the various processing and cleaning operations and to 
minimize or prevent stoppage and surcharging at the 
system. 



TABLE 717.1 
MAXIMUM/MINIMUM FIXTURE UNIT LOADING 
ON BUILDING SEWER PIPING* 



SIZE OF PIPE 
(inches) 

6 and smaller 
8 

10 
12 



SLOPE, 
{inches per foot) 

Vie Va 1 /4 

(As specified in Table 703.2/ 
No minimum loading) 

1 950/ 1 500 2800/625 i 3900/275 

3400/1600 4900/675 6800/300 

5600/1700 8000/725 : I J 200/325 



For SI units: 1 inch = 25 mm, 1 inch per foot — S3. 3 mm/m 

* See also Appendix H, Private Sewage Disposal Systems. For alternate 
methods of sizing drainage piping, see Appendix C. 

718.0 Grade, Support, and Protection of Building 
Sewers. 

718.1 Slope. Building sewers shall be run in practical 
alignment and at a uniform slope of not less than l A inch 
per foot (20.8 mm/m) toward the point of disposal. 

Exception: Where approved by the Authority Having 
jurisdiction and where it is impractical, due to the depth of 
the street sewer or to the structural features or to the 
arrangement of a building or structure, to obtain a slope of 
'/4 inch per foot (20.8 mm/m), such pipe or piping 4 inches 
(100 mm) through 6 inches (150 mm) shall be permitted to 
have a slope of not less than % inch per foot (10.4 mm/m) 
and such piping 8 inches (200 mm) and larger shall be 
permitted to have a slope of not less than '/i6 inch per foot 
(5.2 mm/m). 

718.2 Support. Building sewer piping shall be laid on a 
firm bed throughout its entire length, and such piping laid 
in made or filled-in ground shall be laid on a bed of 



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SANITARY DRAINAGE 



approved materials and shall be properly supported as 
required by the Authority Having Jurisdiction. 

718.3 Protection from Damage. No building sewer or other 
drainage piping or part thereof, which is constructed of mate- 
rials other than those approved for use under or within a 
building, shall be installed under or within 2 feet (610 mm) 
of a building or structure, or part thereof, nor less than 1 foot 
(305 linn) below the surface of the ground. The provisions of 
this subsection include structures such as porches and steps, 
whether covered or uncovered; breezeways; roofed porte 
cocheres; roofed patios; carports; covered walks; covered 
driveways; and similar structures or appurtenances. 

719.0 CJeanouts. 

719.1 Locations. Cleanouts shall be placed inside the 
building near the connection between the building drain 
and the building sewer or installed outside the building at 
the lower end of the building drain and extended to grade. 

Additional building sewer cleanouts shall be installed 
at intervals not to exceed 100 feet (30 480 mm) in straight 
runs and for each aggregate horizontal change in direction 
exceeding 1 35 degrees (2.36 rad). 

719.2 No Additional Cleanouts. Where a building sewer 
or a branch thereof does not exceed 10 feet (3048 mm) in 
length and is a straight-line projection from a building drain 
that is provided with a cleanout, no cleanout will be 
required at its point of connection to the building drain. 

719.3 Building Sewer Cleanouts. Required building sewer 
cleanouts shall be extended to grade and shall be in accor- 
dance with the appropriate sections of Cleanouts, Section 
707.0, for sizing, construction, and materials. Where 
building sewers are located under buildings, the cleanout 
requirements of Section 707.0 shall apply. 

719.4 Cleaning. Each cleanout shall be installed so that it 
opens to allow cleaning in the direction of flow of the soil 
or waste or at right angles thereto and, except in the case of 
wye branch and end-of-line cleanouts, shall be installed 
vertically above the flow line of the pipe. 

719.5 Access. Cleanouts installed under concrete or asphalt 
paving shall be made accessible by yard boxes or by 
extending flush with paving with approved materials and 
shall be adequately protected. 

719.6 Manholes. Approved manholes shall be permitted to 
be installed in lieu of cleanouts, where first approved by the 
Authority Having Jurisdiction. The maximum distance 
between manholes shall not exceed 300 feet (91 440 mm). 

The inlet and outlet connections shall be made by the 
use of a flexible compression joint not less than 12 inches 
(305 mm) and not exceeding 3 feet (914 mm) from the 
manhole. No flexible compression joints shall be embedded 
in the manhole base. 

720.0 Sewer and Water Pipes. 

720.1 General Building sewers or drainage piping of clay 
or materials that are not approved for use within a building 
shall not be run or laid in the same trench as the water pipes 
unless the following requirements are met: 



(1) The bottom of the water pipe, at points, shall be not 
less than 12 inches (305 mm) above the top of the 
sewer or drain line. 

(2) The water pipe shall be placed on a solid shelf exca- 
vated at one side of the common trench with a clear 
horizontal distance of not less than 12 inches (305 mm) 
from the sewer or drain line. 

(3) Water pipes crossing sewer or drainage piping 
constructed of clay or materials that are not approved 
for use within a building shall be laid not less than 12 
inches (305 mm) above the sewer or drain pipe. 

For the purpose of this section, ''within a building" shall 
mean within the fixed limits of the building foundation. 

721.0 Location. 

721.1 Building Sewer. Except as provided in Section 
721 .2, no building sewer shall be located in a lot other than 
the lot that is the site of the building or structure served by 
such sewer nor shall a building sewer be located at a point 
having less than the minimum distances referenced in Table 
721.1. 

72L2 Abutting Lot. Nothing contained in this code shall 
be construed to prohibit the use of all or part of an abutting 
lot to: 

(1) Provide access to connect a building sewer to an avail- 
able public sewer where proper cause and legal ease- 
ment, not in violation of other requirements, has been 
first established to the satisfaction of the Authority 
Having Jurisdiction. 

(2) Provide additional space for a building sewer where 
proper cause, transfer of ownership, or change of 
boundary, not in violation of other requirements, has 
been first established to the satisfaction of the 
Authority Having Jurisdiction. The instrument 
recording such action shall constitute an agreement 
with the Authority Having Jurisdiction and shall 
clearly state and show that the areas so joined or used 
shall be maintained as a unit during the time they are 
so used. Such an agreement shall be recorded in the 
office of the County Recorder as part of the conditions 
of ownership of said properties, and shall be binding 
on heirs, successors, and assigns to such properties. A 
copy of the instrument recording such proceedings 
shall be filed with the Authority Having Jurisdiction. 

722.0 Abandoned Sewers and Sewage Disposal Facili- 
ties. 

722.1 Building (House) Sewer. An abandoned building 
(house) sewer, or part thereof, shall be plugged or capped 
in an approved manner within 5 feet (1524 mm) of the 
property line. 

722.2 Cesspools, Septic Tanks, and Seepage Pits. A 
cesspool, septic tank, and seepage pit that has been aban- 
doned or has been discontinued otherwise from further use, 
or to which no waste or soil pipe from a plumbing fixture is 



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TABLE 721.1 

MINIMUM HORIZONTAL DISTANCE REQUIRED FROM BUILDING SEWER (feet) 



Buildings or structures' 



Property line adjoining private property Clear 



Water supply wells 50 3 



Streams 50 



On-site domestic water service line 



Public water main I () 5 - 6 



For S 1 units: I foo t = 3 04 . 8 m in 
Notes: 

1 Including porches and steps, whether covered or uncovered; breezeways; roofed portecocheres; rooted patios; carports; covered walks; covered driveways; 

and similar structures or appurtenances. 
" See also Section 312.3. 

J Drainage piping shall clear domestic water supply wells by not less than 50 feet (15 240 mm). This distance shall be permitted to be reduced to not less 
than 25 feet (7620 mm) where the drainage piping is constructed of materials approved for use within a building. 

4 See Section 720.0. 

5 For parallel construction. 

6 For crossings, approval by the Health Department or the Authority Having jurisdiction shall be required. 



connected, shall have the sewage removed therefrom and 
be completely filled with earth, sand, gravel, concrete, or 
other approved material. 

722.3 Filling. The top cover or arch over the cesspool, 
septic tank, or seepage pit shall be removed before filling, 
and the fi lling shall not extend above the top of the vertical 
portions of the sidewalls or above the level of the outlet 
pipe until inspection has been called and the cesspool, 
septic tank, or seepage pit has been inspected. After such 
inspection, the cesspool, septic tank, or seepage pit shall be 
filled to the level of the top of the ground. 

722.4 Ownership. No person owning or controlling a 
cesspool, septic tank, or seepage pit on the premises of such 
person or in that portion of a public street, alley, or other 
public property abutting such premises, shall fail, refuse, or 
neglect to comply with the provisions of this section or 
upon receipt of notice so to comply from the Authority 
Having jurisdiction. 

722.5 Disposal Facilities. Where disposal facilities are 
abandoned consequent to connecting a premises with the 
public sewer, the permittee making the connection shall fill 
abandoned facilities in accordance with the Authority 
Having jurisdiction within 30 days from the time of 
connecting to the public sewer. 

723.0 Building Sewer Test. 

723.1 General. Building sewers shall be tested by plugging 
the end of the building sewer at its points of connection 
with the public sewer or private sewage disposal system 
and completely filling the building sewer with water from 
the lowest to the highest point thereof, or by approved 
equivalent low-pressure air test. Plastic DWV piping 



systems shall not be tested by the air test method. The 
building sewer shall be watertight. I 

724.0 [AGRf Meat and Poultry Processing Plant 
Drainage. 

724.1 The drainage and plumbing systems mus t permit the 
quick runoff of all water from plant buddings, and of surface 
water around the plant buildings, and of surface water 
around the plant and on the premises; and all such water 
shall be disposed of in such a manner as to prevent a 
nuisance or health hazard. 

724.2 Toilet soil lines shall be separated from house 
drainage lines to a point outside the building unless an auto- 
matic backwater check valve is installed to prevent back/low. 
Drainage from toilet bowls and urinals shall not be 
discharged into a grease catch basin, nor shall such 
drainage be permitted to enter the sewer lines at a point 
where there might be a possibility of such drainage backing 
up and flooding the floor of the building. 

725.0 /AGRf Collection Center and Facilities Drainage. 

Drainage and plumbing systems shall meet the require- 
ments of Section 724. 1. 

726. [A GR] Drainage and Plumbing, General. 

726.1 The outer premises of every official establishment, 
including docks, areas where cars and other vehicles are 
loaded, driveways, approaches, yards, pens and alleys, 
shall be drained. 

726.2 Toilet soil lines shall be separated from house 
drainage lines to a point outside the building, and drainage 
from toilet bowls and urinals shall not be discharged into a 
grease catch basin. 



2013 CALIFORNIA PLUMBING CODE 



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SANITARY DRAINAGE 



727.0 fOSHPD 1] Emergency Sanitary Drainage. 

727.1 For new acute care hospital buildings submitted 
after the effective date of this code, the hospital shall have 
an on-site holding tankfsf to store sewage and liquid waste 
sufficient to operate essential hospital utilities and equip- 
ment in the acute care hospital building, to support 72 
hours of continuing operation in the event of an emergency. 
Any general acute care hospital in operation after January 
1 , 2030 shall have an on-site holding tankfsj to store 
sewage and liquid waste sufficient to operate essential 
hospital utilities and equipment in the acute care hospital 
buildings on the campus with an SPC-3, SPC-4, or SPC-5 
rating, to support 72 hours of continuing operation in the 
event of an emergency. The emergency waste holding 
capacity shall be based on the Water Conservation/Water 
Rationing Plan required in Section 615.4.1. See also Cali- 
fornia Building Code, Part 2, Section 1616/4.1.42. 

Exception: Hook-ups that allow for the use of trans- 
portable means of sewage and liquid waste disposal may be 
provided instead of on-site storage if the hospital has a 
plan for storage of sewage and liquid waste. This plan may 
include the use of leak-proof bags if adequate storage of 
these and other bags of waste are provided. These storage 
facilities shall comply with the appropriate local health and 
environmental authorities ' requirements, California 
Department of Public Health requirements for medical 
waste management, and comply with the following 
m in i/n urn req u irem en ts : 

(a) Location fs/. Location fs] shall be provided for waste 
collection and storage with sufficient space based upon 
the volume of projected waste and length of anticipated 
storage. 

(b) Enclosnrefsf. Lockable roomfs] or lockable screened 
enclosure fs] of adequate capacity to store the quantity 
of waste anticipated shall be provided for the washing 
and cleaning of containers and for the storage of 
sewage and waste water. 

The roomfs] or screened enclosure fs] shall 
include th e fo 11 o wing: 

1. Floor and curb. A sealed concrete floor or other 
approved impervious flooring with a curb and 
with a drain connected to the sewer. 

2. Water. Steam or hot water and cold water supplies 
in accordance with the California Plumbing Code. 



166 



2013 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 8 - INDIRECT WASTES 
(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 

| _ HCD DSA OSHPD 

Adopting Agency 



! BSC | SFM 



IBSCC DPH ! AGRiDWR CA 



1 2 1-AC AC SS SS/CC 1 



SL I SLC 



Adopt Entire Chapter 

j Adopt Entire Chapter as amended 
(amended sections listed below) 

Adopt only those sections that are 
listed below 



X j X 



X X XXX X 



Chapter/Section 



2013 CALIFORNIA PLUMBING CODE 



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INDIRECT WASTES 



804.0 Indirect Waste Receptors. 

804.1 Stand pipe Receptors. Plumbing fixtures or other 
receptors receiving the discharge of indirect waste pipes 
shall be approved for the use proposed and shall be of such 
shape and capacity as to prevent splashing or flooding and 
shall be located where they are readily accessible for 
inspection and cleaning. No standpipe receptor for a clothes 
washer shall extend more than 30 inches (762 mm), or not 
less than 18 inches (457 mm) above its trap. No trap for a 
clothes washer standpipe receptor shall be installed below 
the floor, but shall be roughed in not less than 6 inches (152 
mm) and not more than 18 inches (457 mm) above the 
floor. No indirect waste receptor shall be installed in a 
toilet room, closet, cupboard, or storeroom, nor in a portion 
of a building not in general use by the occupants thereof; 
except standpipes for clothes washers shall be permitted to 
be installed in toilet and bathroom areas where the clothes 
washer is installed in the same room. 

805.0 Pressure Drainage Connections. 

805.1. General. Indirect waste connections shall be 
provided for drains, overflows, or relief vents from the 
water supply system, and no piping or equipment carrying 
wastes or producing wastes or other discharges under pres- 
sure shall be directly connected to a part of the drainage 
system. 

The foregoing shall not apply to an approved sump 
pump or to an approved pressure- wasting plumbing fixture 
or device where the Authority Having Jurisdiction has been 
satisfied that the drainage system is adequately sized to 
accommodate the anticipated discharge thereof 

806.0 Sterile Equipment 

806.1 General. Appliances, devices, or apparatus such as 
stills, sterilizers, and similar equipment requiring water and 
waste and used for sterile materials shall be drained 
through an air gap. 

807.0 Appliances. 

807.1 Non-Classed Apparatus. Appliances, devices, 
equipment, or other apparatus not regularly classed as 
plumbing fixtures, which are equipped with pumps, drips, 
or drainage outlets, shall be permitted to be drained by indi- 
rect waste pipes discharging into an approved type of open 
receptor. 

807.2 Condensate Waste. Where the condensate waste 
from air- conditioning coils discharges by direct connection 
to a lavatory tailpiece or to an approved accessible inlet on 
a bathtub overflow, the connection shall be located in the 
area controlled by the same person controlling the air- 
conditioned space. 

807.3 Undiluted Condensate Waste. Where undiluted 
condensate waste from a fuel -burning condensing appliance 
is discharged into the drainage system, the material in the 
drainage system shall be cast-iron, galvanized iron, plastic, 
or other materials approved for this use. 



Exceptions: 

(1) Where the above condensate is discharged to an 
exposed fixture tailpiece and trap, such tailpiece and 
trap shall be permitted to be brass, 

(2) Materials approved in Section 701.0 shall be permitted 
to be used where data is provided that the condensate 
waste is adequately diluted. 

807.4 Domestic Dishwashing Machine. No domestic dish- 
washing machine shall be directly connected to a drainage 
system or food waste disposer without the use of an 
approved dishwasher air gap fitting on the discharge side of 
the dishwashing machine. Listed air gaps shall be installed 
with the flood-level (FL) marking at or above the flood 
level of the sink or drainboard, whichever is higher. 

808.0 Cooling Water. 

808.1 General. Where permitted by the Authority Having 
Jurisdiction, clean running water used exclusively as a 
cooling medium in an appliance, device, or apparatus shall 
be permitted to discharge into the drainage system through 
the inlet side of a fixture trap in the event that a suitable 
fixture is not available to receive such discharge. Such trap 
connection shall be by means of a pipe connected to the 
inlet side of an approved fixture trap, the upper end termi- 
nating in a funnel-shaped receptacle set adjacent, and not 
less than 6 inches (152 mm) above the overflow rim of the 
fixture. 

809 J Drinking Fountains. 

809.1 General. Drinking fountains shall be permitted to be 
installed with indirect wastes. 

810.0 Steam and Hot Water Drainage Condensers and 
Sumps. 

810.1 High Temperature Discharge. No steam pipe shall 
be directly connected to a plumbing or drainage system, nor 
shall water having a temperature above 140 o F (60°C) be 
discharged under pressure directly into a drainage system. 
Pipes from boilers shall discharge by means of indirect 
waste piping, as determined by the Authority Having Juris- 
diction or the boiler manufacturer's recommendations. 
Such pipes shall be permitted to be indirectly connected by 
discharging into an open or closed condenser or an inter- 
cepting sump of an approved type that will prevent the 
entrance of steam or such water under pressure into the 
drainage system. Closed condensers or sumps shall be 
provided with a vent that shall be taken off the top and 
extended separately, full size above the roof. Condensers 
and sumps shall be properly trapped at the outlet with a 
deep seal trap extending to within 6 inches (152 mm) of the 
bottom of the tank. The top of the deep seal trap shall have 
a 3 A of an inch (19.1 mm) opening located at the highest 
point of the trap to serve as a siphon breaker. Outlets shall 
be taken off from the side in such a manner as to allow a 
waterline to be maintained that will permanently occupy 
not less than one-half the capacity of the condenser or 



170 



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INDIRECT WASTES 



801.0 Indirect Wastes. 

801.1 Air Gap or Air Break Required. Indirect waste 
piping shall discharge into the building drainage system 
through an air gap or air break as set forth in this code. 
Where a drainage air gap is required by this code, the 
minimum vertical distance as measured from the lowest 
point of the indirect waste pipe or the fixture outlet to the 
flood-level rim of the receptor shall be not less than 1 inch 
(25.4 mm). 

801.2 Food and Beverage Handling Establishments. 
Establishments engaged in the storage, preparation, selling, 
serving, processing, or other handling of food and beverage 
involving the following equipment that requires drainage 
shall provide indirect waste piping for refrigerators, refrig- 
eration coils, freezers, walk-in coolers, iceboxes, ice- 
making machines, steam tables, egg boilers, coffee urns 
and brewers, hot-and-cold drink dispensers, and similar 
equipment. 

801.2.1 Size of Indirect Waste Pipes. Except for 
refrigeration coils and ice-making machines, the size of 
the indirect waste pipe shall be not smaller than the 
drain on the unit, but shall be not smaller than 1 inch 
(25 mm), and the maximum developed length shall not 
exceed 15 feet (4572 mm). Indirect waste pipe for ice- 
making machines shall be not less than the drain on the 
unit, and in no case less than "A of an inch (20 mm). 

801.2.2 Walk-In Coolers. For walk-in coolers, floor 
drains shall be permitted to be connected to a separate 
drainage line discharging into an outside receptor. The 
flood-level rim of the receptor shall be not less than 6 
inches (152 mm) lower than the lowest floor drain. 
Such floor drains shall be trapped and individually 
vented. Cleanouts shall be provided at 90 degree (1.57 
rad) turns and shall be accessibly located. Such waste 
shall discharge through an air gap or air break into a 
trapped and vented receptor, except that a full-size air 
gap is required where the indirect waste pipe is under 
vacuum. 

801.2.3 Food-Handling Fixtures. Food-preparation 
sinks, steam kettles, potato peelers, ice cream dipper 
wells, and similar equipment shall be indirectly 
connected to the drainage system by means of an air 
gap. Bins, sinks, and other equipment having drainage 
connections and used for the storage of unpackaged ice 
used for human ingestion, or used in direct contact 
with ready-to-eat food, shall be indirectly connected to 
the drainage system by means of an air gap. Each indi- 
rect waste pipe from food -handling fixtures or equip- 
ment shall be separately piped to the indirect waste 
receptor and shall not combine with other indirect 
waste pipes. The piping from the equipment to the 
receptor shall be not less than the drain on the unit, and 
in no case less than Vi of an inch (15 mm). 



801.3 Bar and Fountain Sink Traps. Where the sink in a 
bar, soda fountain, or counter is so located that the trap 
serving the sink cannot be vented, the sink drain shall 
discharge through an air gap or air break (see Section 
801.2.3) into an approved receptor that is vented. The 
developed length from the fixture outlet to the receptor 
shall not exceed 5 feet (1524 mm). 

801.4 Connections from Water Distribution System. 
Indirect waste connections shall be provided for drains, 
overflows, or relief pipes from potable water pressure 
tanks, water heaters, boilers, and similar equipment that is 
connected to the potable water distribution system. Such 
indirect waste connections shall be made by means of a 
water-distribution air gap constructed in accordance with 
Table 603.3.1. 

801.5 Sterilizers. Lines, devices, or apparatus such as 
stills, sterilizers, and similar equipment requiring waste 
connections and used for sterile materials shall be indirectly 
connected by means of an air gap. Each such indirect waste 
pipe shall be separately piped to the receptor and shall not 
exceed 15 feet (4572 mm). Such receptors shall be located 
in the same room. 

801.6 Drip or Drainage Outlets. Appliances, devices, or 
apparatus not regularly classified as plumbing fixtures, but 
which have drip or drainage outlets, shall be permitted to 
be drained by indirect waste pipes discharging into an open 
receptor through either an air gap or air break (see Section 
801.2.1). 

802.0 Approvals. 

802.1 General. No plumbing fixtures served by indirect 
waste pipes or receiving discharge therefrom shall be 
installed until first approved by the Authority Having Juris- 
diction. 

803.0 Indirect Waste Piping. 

803.1 General. Except as hereinafter provided, the size and 
construction of indirect waste piping shall be in accordance 
with other sections of this code applicable to drainage and 
vent piping. No vent from indirect waste piping shall 
combine with a sewer-connected vent, but shall extend 
separately to the outside air. indirect waste pipes exceeding 
5 feet (1 524 mm), but less than 15 feet (4572 mm) in length 
shall be directly trapped, but such traps need not be vented. 

Indirect waste pipes less than 15 feet (4572 mm) in 
length shall be not less than the diameter of the drain outlet 
or tailpiece of the fixture, appliance, or equipment served, 
and in no case less than Vi of an inch (15 mm ). Angles and 
changes of direction in such indirect waste pipes shall be 
provided with cleanouts so as to permit flushing and 
cleaning. 



2013 CALIFORNIA PLUMBING CODE 



169 



INDIRECT WASTES 



sump. Inlets shall enter above the waterline. Wearing plates 
or baffles shall be installed in the tank to protect the shell. 
The sizes of the blowoff line inlet, the water outlets, and 
the vent shall be as shown in Table 810.1. The contents of 
condensers receiving steam or hot water under pressure 
shall pass through an open sump before entering the 
drainage system. 

TABLE 810.1 

PIPE CONNECTIONS IN BLOWOFF CONDENSERS AND SUMPS 





(inches) 




BOILER BLOWOFF 


WATER OUTLET 


VENT 


I 


3 /4* j 

1 


2 

2Vi 


VA 


l'/4 


-» 


V/2 


V/2 


4 


2 


2 \ 


5 


2Vi | 


2'/2 


6 



For SI units: 1 inch = 25.4 mm 

* To be used only with boilers of 100 square feet (9.29 nr) of heating 
surface or less. 

810.2 Sumps, Condensers, and Intercepting Tanks. 
Sumps, condensers, or intercepting tanks that are 
constructed of concrete shall have walls and bottom not 
less than 4 inches (1 02 mm) in thickness, and the inside 
shall be cement plastered not less than Vi of an inch (1.2.7 
mm) in thickness. Condensers constructed of metal shall be 
not less than No. 12 U.S. standard gauge (0.109 inch) (2.77 
mm), and such metal condensers shall be protected from 
external corrosion by an approved bituminous coating. 

810.3 Cleaning. Sumps and condensers shall be provided 
with suitable means of access for cleaning and shall contain 
a volume of not less than twice the volume of water 
removed from the boiler or boilers connected thereto where 
the normal water level of such boiler or boilers is reduced 
not less than 4 inches (102 mm). 

810.4 Strainers. An indirect waste interceptor receiving 
discharge-containing particles that would clog the receptor 
drain shall have a readily removable beehive strainer. 

811.0 Chemical Wastes. 

811.1 Pretreatment. Chemical or industrial liquid wastes 
that are likely to damage or increase maintenance costs on 
the sanitary sewer system, detrimentally affect sewage 
treatment, or contaminate surface or subsurface waters shall 
be pretreated to render them innocuous prior to discharge 
into a drainage system. Detailed plans and specifications of 
the pretreatment facilities shall be required by the Authority 
Having Jurisdiction. 

Piping conveying industrial, chemical, or process 
wastes from their point of origin to sewer-connected 
pretreatment facilities shall be of such material and design 
as to adequately perform its intended function to the satis- 



faction of the Authority Having Jurisdiction. Drainage 
discharge piping from pretreatment facilities or interceptors 
shall be in accordance with standard drainage installation 
procedures. 

Copper tube shall not be used for chemical or indus- 
trial wastes as defined in this section. 

811.2 Waste and Vent Pipes. Each waste pipe receiving or 
intended to receive the discharge of a fixture into which 
acid or corrosive chemical is placed, and each vent pipe 
connected thereto, shall be constructed of Chlorinated 
Poly(vinyl-chloride) (CPVC), Polypropylene (PP), 
Polyvinylidene Fluoride (PVDF), chemical-resistant glass, 
high-silicon iron pipe, or lead pipe with a wall thickness of 
not less than '/s of an inch (3.2 mm); an approved type of 
ceramic glazed or unglazed vitrified clay; or other approved 
corrosion-resistant materials. 

811.3 Joining Materials. Joining materials shall be of 
approved type and quality. 

811.4 Access. Where practicable, piping shall be readily 
accessible and installed with the maximum of clearance 
from other services. 

811.5 Permanent Record. The owner shall make and keep 
a permanent record of the location of piping and venting 
carrying chemical waste. 

811.6 Chemical Vent. No chemical vent shall intersect 
vents for other services. 

811.7 Discharge. Chemical wastes shall be discharged in a 
manner approved by the Authority Having jurisdiction. 

811.8 Diluted Chemicals. The provisions in this section 
relative to materials and methods of construction shall not 
apply to installations such as photographic or x-ray dark 
rooms or research or control laboratories where minor 
amounts of adequately diluted chemicals are discharged. 

812.0 Clear Water Wastes. 

812.1 General. Water lifts, expansion tanks, cooling 
jackets, sprinkler systems, drip or overflow pans, or similar 
devices that discharge clear wastewater into the building 
drainage system shall discharge through an indirect waste. 

813.0 Swimming Pools. 

813.1 General. Pipes carrying wastewater from swimming 
or wading pools, including pool drainage and backwash 
from filters, shall be installed as an indirect waste. Where a 
pump is used to discharge waste pool water to the drainage 
system, the pump discharge shall be installed as an indirect 
waste. 

814.0 Condensate Wastes and Control. 

814.1 Condensate Disposal. Condensate from air washers, 
air-cooling coils, fuel-burning condensing appliances, the 
overflow from evaporative coolers, and similar water- 
supplied equipment or similar air-conditioning equipment 



2013 CALIFORNIA PLUMBING CODE 



171 



INDIRECT WASTES 



shall be collected and discharged to an approved plumbing 
fixture or disposal area. Where discharged into the 
drainage system, equipment shall drain by means of an 
indirect waste pipe. The waste pipe shall have a slope of 
not Jess than '/s inch per foot (10.4 mm/m) or 1 percent 
slope and shall be of approved corrosion-resistant material 
not smaller than the outlet size in accordance with Table 
1 814.1 for condensing fuel-burning appliances, respectively. 
Condensate or wastewater shall not drain over a public way. 



TABLE 814,1 
MINIMUM CONDENSATE PIPE SIZE 



EQUIPMENT CAPACITY SN ! MINIMUM CONDENSATE PIPE 
TONS OF REFRIGERATION ! UlAMLTcn 

(inches) 



Up to 20 : /4 

21-40 1 

41-90 VA 

91-125 VA 

126-250 I 2 

For SI units: 1 ton = 3.52 kW, 1 inch - 25 mm 



S 814.2 Size. The size of condensate waste pipes is for one 
unit or a combination of units, or as recommended by the 
manufacturer. The capacity of waste pipes assumes a % 

I inch per foot (1 0.4 mm/m) or 1 percent slope, with the pipe 
running three-quarters full at the following pipe conditions: 



Outside A ir -20% 
DB WB 
90°F 73°F 



Room Air - 80% 
DB WB 
75°F 62.5°F 



.For SI units: °C = (°F-32)/ 1 .8 



Condensate drain sizing for other slopes or other 
conditions shall be approved by the Authority Having Juris- 
diction. 

Air-conditioning waste pipes shall be constructed of 
materials specified in Chapter 7. 

814.3 Point of Discharge. Air-conditioning condensate 
waste pipes shall connect indirectly to the drainage system 
through an air gap or air break to properly trapped and 
vented receptors, dry wells, leach pits, or the tailpiece of 
plumbing fixtures. 

Condensate waste shall not drain over a public way. 



172 



2013 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 9 - VENTS 

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 

DSA 



; Adopting Agency 



Adopt Entire Chapter 

Adopt Entire Chapter as amended 
(amended sections listed below) 

Adopt only those sections that are 
listed below 



! Chapter/Section 
903.1.1 
j 903. 1.2 
903.1.3 
906.2.1 



BSC ! SFM 

X 



HCD | 
| 2 1-AC AC SS SS/CC 1 



OSHPD 



BSCC DPH AGR DWR CA SL SLC 



X X 



X i X 
X 



X X X X 



X X 
X X 



X 
X 



2013 CALIFORNIA PLUMBING CODE 



173 



2013 CALIFORNIA PLUMBING CODE 



CHAPTER 9 

VENTS 



901.0 General. 

901.1 Vents Required. Each plumbing fixture trap, except 
as otherwise provided in this code, shall be protected 
against siphonage and backpressure, and air circulation 
shall be ensured throughout all parts of the drainage system 
by means of vent pipes installed in accordance with the 
requirements of this chapter and as otherwise required by 
this code. 

901.2 Trap Seal Protection. The vent system shall be 
designed to prevent a trap seal from being exposed to a 
pressure differential that exceeds 1 inch water column (0.24 
kPa) on the outlet side of the trap. 

902.0 Vents Not Required. 

902.1 Interceptor. Vent piping shall be permitted to be 
omitted on an interceptor where such interceptor acts as a 
primary settling tank and discharges through a horizontal 
indirect waste pipe into a secondary interceptor. The second 
interceptor shall be properly trapped and vented. 

902.2 Bars, Soda Fountains, and Counter. Traps serving 
sinks that are part of the equipment of bars, soda fountains, 
and counters need not be vented where the location and 
construction of such bars, soda fountains, and counters is 
such as to make it impossible to do so. Where such condi- 
tions exist, said sinks shall discharge by means of approved 
indirect waste pipes into a floor sink or other approved type 
of receptor. 

903.0 Materials. 

903.1 Applicable Standards. Vent pipe and fittings shall 
comply with the applicable standards referenced in Table 
701.1, except that: 

(1) No galvanized steel or 304 stainless steel pipe shall be 
installed underground and shall be not less than 6 
inches (152 mm) aboveground. 

(2) ABS and PVC DWV piping installations shall be in 
accordance with the applicable standards referenced in 

II Table 1401.1. Except for individual single-family 
dwelling units, materials exposed within ducts or 
plenums shall have a flame-spread index of a 
maximum of 25 and a smoke-developed index of not 

I more than 50 where tested in accordance with ASTM 
E84 or UL 723. 

II 903.1.1 [HCD 1 Si HCD 2] ABS or PVC installations 
are limited to not more than two stories of areas of 
residential accommodation. 

II 903. 1.2 [HCD 1] All malleable iron vents shall be 
galvanized. 

II 903.1.3 fOSHPD 7, 2, 3 & 4] ABS and PVC installa- 
tions are not allowed. 



903.2 Use of Copper Tubing. 

903.2.1 Underground. Copper tube for underground 
drainage and vent piping shall have a weight of not less 
than that of copper drainage tube type DWV. 

903.2.2 Aboveground. Copper tube for aboveground 
drainage and vent piping shall have a weight of not less 
than that of copper drainage tube type DWV. 

903.2.3 Prohibited Use. Copper tube shall not be used 
for chemical or industrial wastes as defined in Section 
811.0. 

903.2.4 Marking. Hard-drawn copper tubing, in addi- 
tion to the required incised marking, shall be marked in 
accordance with either ASTM B 306 or ASTM B 88 as 
listed in Table 1401.1. The colors shall be: Type K, 
green; Type L, blue; Type M, red; and Type DWV, 
yellow. 

903.3 Changes in Direction. Changes in direction of vent 
piping shall be made by the appropriate use of approved 
fittings, and no such pipe shall be strained or bent. Burred 
ends shall be reamed to the full bore of the pipe. 

904.0 Size of Vents. 

904.1 Size. The size of vent piping shall be determined 
from its length and the total number of fixture units 
connected thereto, in accordance with Table 703.2. The 
diameter of an individual vent shall be not less than 1 l A 
inches (32 mm) nor less than one-half the diameter of the 
drain to which it is connected. In addition, the drainage 
piping of each building and each connection to a public 
sewer or a private sewage disposal system shall be vented 
by means of one or more vent pipes, the aggregate cross- 
sectional area of which shall be not less than that of the 
largest required building sewer, as determined from Table 
703.2. Vent pipes from fixtures located upstream from 
pumps, ejectors, backwater valves, or other devices that I 
obstruct the free flow of air and other gases between the | 
building sewer and the outside atmosphere shall not be 
used for meeting the cross-sectional area venting require- 
ments of this section. 

Exception: Where connected to a common building sewer, 
the drainage piping of two or more buildings located on the 
same lot and under one ownership shall be permitted to be 
vented by means of piping sized in accordance with Table 
703.2, provided the aggregate cross-sectional area of vents 
is not less than that of the largest required common 
building sewer. 

904.2 Length. Not more than one-third of the total permitted 
length, in accordance with Table 703.2, of a minimum-sized 
vent shall be installed in a horizontal position. 

Exception: Where a minimum-sized vent is increased one 
pipe size for its entire length, the maximum length limita- 
tion shall not apply. 



2013 CALIFORNIA PLUMBING CODE 



DECEMBER 7, 2013 SUPPLEMENT 
BLUE 



175 



VENTS 



905.0 Vent Pipe Grades and Connections. 

905.1 Grade. Vent and branch vent pipes shall be free from 
drops or sags, and each such vent shall be level or shall be 
so graded and connected as to drip back by gravity to the 
drainage pipe it serves. 

905.2 Horizontal Drainage Pipe. Where vents connect to 
a horizontal drainage pipe, each vent pipe shall have its 
invert taken off above the drainage centerline of such pipe 
downstream of the trap being served. 

905.3 Vent Pipe Rise. Unless prohibited by structural 
conditions, each vent shall rise vertically to a point not less 
than 6 inches (152 mm) above the flood-level rim of the 
fixture served before offsetting horizontally, and where two 
or more vent pipes converge, each such vent pipe shall rise 
to a point not less than 6 inches (152 mm) in height above 
the flood-level rim of the plumbing fixture it serves before 
being connected to any other vent. Vents less than 6 inches 
(152 mm) above the flood-level rim of the fixture shall be 
installed with approved drainage fittings, material, and 
grade to the drain. 

905.4 Roof Termination. Vent pipes shall extend undimin- 
ished in size above the roof, or shall be reconnected with a 
soil or waste vent of proper size. 

905.5 Location of Opening. The vent pipe opening from a 
soil or waste pipe, except for water closets and similar 
fixtures, shall not be below the weir of the trap. 

905.6 Common Vertical Pipe. Two fixtures shall be 
permitted to be served by a common vertical pipe where 
each such fixture wastes separately into an approved double 
fitting having inlet openings at the same level. 

906.0 Vent Termination. 

906.1 Roof Termination. Each vent pipe or stack shall 
extend through its flashing and shall terminate vertically 
not less than 6 inches (152 mm) above the roof nor less 
than 1 foot (305 mm) from a vertical surface. 

906.2 Clearance. Each vent shall terminate not less than 10 
feet (3048 mm) from, or not less than 3 feet (914 mm) 
above, an openable window, door, opening, air intake, or 
vent shaft, or not less than 3 feet (914 mm) in every direc- 
tion from a lot line, alley and street excepted, 

II 906.2.1 fOSHPD h 2, 3 & 4] Each vent pipe shall 
terminate not less than twenty-five (25) feet (7620 mm) 
from any air intake or vent shaft. 

906.3 Use of Roof. Vent pipes shall be extended separately 
or combined, of full required size, not less than 6 inches 
(152 mm) above the roof or fire wall. Flagpoling of vents 
shall be prohibited except where the roof is used for 
purposes other than weather protection. Vents within 10 
feet (3048 mm) of a part of the roof that is used for such 
other purposes shall extend not less than 7 feet (2134 mm) 
above such roof and shall be securely stayed. 

906.4 Outdoor Installations. Vent pipes for outdoor 
installations shall extend not less than 10 feet (3048 mm) 
above the surrounding ground and shall be securely 
supported. 



906.5 Joints. Joints at the roof around vent pipes shall be 
made watertight by the use of approved flashings or 
flashing material. 

906.6 Lead. (See Table 1401.1) Sheet lead shall be not less 
than the following: 

(1) For safe pans - not less than 4 pounds per square foot 
(lb/ft 2 ) (19 kg/m 2 ) or V\e of an inch (1.6 mm) thick. 

(2) For flashings or vent terminals - not less than 3 lb/ft 2 
(15 kg/m 2 ). 

(3) Lead bends and lead traps shall be not less than A of 
an inch (3.2 mm) wall thickness. 

906.7 Frost or Snow Closure. Where frost or snow closure 
is likely to occur in locations having minimum design 
temperature below 0°F (-17.8°C), vent terminals shall be 
not less than 2 inches (50 mm) in diameter, but in no event 
smaller than the required vent pipe. The change in diameter 
shall be made inside the building not less than 1 foot (305 
mm) below the roof in an insulated space and terminate not 
less than 10 inches (254 mm) above the roof, or in accor- 
dance with the Authority Having Jurisdiction. 

907.0 Vent Stacks and Relief Vents. 

907.1 Drainage Stack. Each drainage stack that extends 10 
or more stories above the building drain or other horizontal 
drain, shall be served by a parallel vent stack, which shall 
extend undiminished in size from its upper terminal and 
connect to the drainage stack at or immediately below the 
lowest fixture drain. Each such vent stack shall also be 
connected to the drainage stack at each fifth floor, counting 
down from the uppermost fixture drain, by means of a yoke 
vent, the size of which shall be not less in diameter than 
either the drainage or the vent stack, whichever is smaller, 

907.2 Yoke Vent. The yoke vent connection to the vent 
stack shall be placed not less than 42 inches (1067 mm) 
above the floor level, and the yoke vent connection to the 
drainage stack shall be by means of a wye-branch fitting 
placed below the lowest drainage branch connection 
serving that floor. 

908.0 Wet Venting. 

908.1 Vertical Wet Venting. Wet venting is limited to 
vertical drainage piping receiving the discharge from the 
trap arm of one and two fixture unit fixtures that also serves 
as a vent not exceeding four fixtures. Wet- vented fixtures 
shall be within the same story; provided, further, that 
fixtures with a continuous vent discharging into a wet vent 
shall be within the same story as the wet-vented fixtures. 
No wet vent shall exceed 6 feet (1829 mm) in developed 
length. 

908.1.1 Size. The vertical piping between two consecu- 
tive inlet levels shall be considered a wet-vented section. 
Each wet-vented section shall be not less than one pipe 
size exceeding the required minimum waste pipe size of 
the upper fixture or shall be one pipe size exceeding the 
required minimum pipe size for the sum of the fixture 
units served by such wet-vented section, whichever is 
larger, but in no case less than 2 inches (50 mm). 



176 



DECEMBER 7, 2013 SUPPLEMENT 
BLUE 



2013 CALIFORNIA PLUMBING CODE 



VENTS 



908.1.2 Vent Connection. Common vent sizing shall 
be the sum of the fixture units served but, in no case, 
smaller than the minimum vent pipe size required for a 
fixture served, or by Section 904.0. 

908.2 Horizontal Wet Venting for Bathroom Groups. 
Water closets, bathtubs, showers, and floor drains within 
one or two bathroom groups located on the same floor level 
and for private use shall be permitted to be vented by a wet 
vent. The wet vent shall be considered the vent for the 
fixtures and shall extend from the connection of the dry 
vent along the direction of the tlow in the drain pipe to the 
most downstream fixture drain or trap arm connection to 
the horizontal branch drain. Each wet-vented fixture drain 
or trap arm shall connect independently to the wet-vented 
horizontal branch drain. Each individual fixture drain or 
trap arm shall connect horizontally to the wet-vented hori- 
zontal branch drain or shall be provided with a dry vent. 
The trap to vent distance shall be in accordance with Table 
1002.2. Only the fixtures within the bathroom groups shall 
connect to the wet-vented horizontal branch drain. The 
water closet fixture drain or trap arm connection to the wet 
vent shall be downstream of the fixture drain or trap arm 
connections. Additional fixtures shall discharge down- 
stream of the wet vent system and be conventionally 
vented. 

908.2.1 Vent Connection. The dry vent connection to 
the wet vent shall be an individual vent or common 
vent for the lavatory, urinal, bidet, shower, or bathtub. 
Only one wet-vented fixture drain or trap arm shall 
discharge upstream of the dry-vented fixture drain 
connection. 

908.2.2 Size. The wet vent shall be sized based on the 
fixture unit discharge into the wet vent. The wet vent 
shall be not less than 2 inches (50 mm) in diameter for 
4 drainage fixture units (dfu) or less, and not less than 
3 inches (80 mm) in diameter for 5 dfu or more. The 
dry vent shall be sized in accordance with Table 702.1 
and Table 703.2 based on the total fixture units 
discharging into the wet vent. 

909.0 Special Venting for Island Fixtures. 

909.1 General. Traps for island sinks and similar equip- 
ment shall be roughed in above the floor and shall be 
permitted to be vented by extending the vent as high as 
possible, but not less than the drainboard height and then 
returning it downward and connecting it to the horizontal 
sink drain immediately downstream from the vertical 
fixture drain. The return vent shall be connected to the hori- 
zontal drain through a wye- branch fitting and shall, in addi- 
tion, be provided with a foot vent taken off the vertical 
fixture vent by means of a wye branch immediately below 
the floor and extending to the nearest partition and then 
through the roof to the open air, or shall be permitted to be 
connected to other vents at a point not less than 6 inches 
(152 mm) above the flood-level rim of the fixtures served. 
Drainage fittings shall be used on the vent below die floor 
level, and a slope of not less than l A inch per foot (20.8 



mm/m) back to the drain shall be maintained. The return 
bend used under the drainboard shall be a one piece fitting 
or an assembly of a 45 degree (0.79 rad), a 90 degree (1 .57 
rad), and a 45 degree (0.79 rad) elbow in the order named. 
Pipe sizing shall be as elsewhere required in this code. The 
island sink drain, upstream of the returned vent, shall serve 
no other fixtures. An accessible cleanout shall be installed 
in the vertical portion of the foot vent. 

910.0 Combination Waste and Vent Systems. 

910.1 Where Permitted. Combination waste and vent 
systems shall be permitted where structural conditions 
preclude the installation of conventional systems as other- 
wise prescribed by this code. 

910.2 Approval. Plans and specifications for each combi- 
nation waste and vent system shall first be approved by the 
Authority Having Jurisdiction before a portion of such 
system is installed. 

910.3 Vents. Each combination waste and vent system, as 
defined in Chapter 2, shall be provided with a vent or vents 
adequate to ensure free circulation of air. A branch 
exceeding 15 feet (4572 mm) in length shall be separately 
vented in an approved manner. The area of a vent installed 
in a combination waste and vent system shall be not less 
than one-half the inside cross-sectional area of the drain 
pipe served. The vent connection shall be downstream of 
the uppermost fixture. 

910.4 Size. Each waste pipe and each trap in such a system 
shall be not less than two pipe sizes exceeding the sizes 
required by Chapter 7 of this code, and not less than two 
pipe sizes exceeding a fixture tailpiece or connection. 

910.5 Vertical Waste Pipe. No vertical waste pipe shall be 
used in such a system, except the tailpiece or connection 
between the outlet of a plumbing fixture and the trap. Such 
tailpieces or connections shall be as short as possible, and 
in no case shall exceed 2 feet (610 mm). 

Exception: Branch lines shall be permitted to have 45 
degree (0.79 rad) vertical offsets. 

910.6 Cleanouts. An accessible cleanout shall be installed 
in each vent for the combination waste and vent system. 
Cleanouts shall not be required on a wet-vented branch 
serving a single trap where the fixture tailpiece or connec- 
tion is not less than 2 inches (50 mm) in diameter and 
provides ready access for cleaning through the trap. 

910.7 Fixtures. No water closet or urinal shall be installed 
on such a system. Other one, two, or three unit fixtures 
remotely loccited from the sanitary system and adjacent to a 
combination waste and vent system shall be permitted to be 
connected to such system in the conventional manner by 
means of waste and vent pipes of regular sizes, providing 
that the two pipe size increase required in Section 910.4 is 
based on the total fixture unit load connected to the system. 

See Appendix B of this code for explanatory notes on 
the design of combination waste and vent systems. 



2013 CALIFORNIA PLUMBING CODE 



177 



VENTS 



911.0 Engineered Vent System. 

911.1 General. The design and sizing of a vent system 
shall be permitted to be determined by accepted engi- 
neering practices. The system shall be designed by a regis- 
tered design professional and approved in accordance with 
Section 301.4 

911.2 Minimum Requirements. An engineered vent 
system shall provide protection of the trap seal in accor- 
dance with Section 901 .2. 



178 



2013 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 10 - TRAPS AND INTERCEPTORS 

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 



Adopting Agency 

Adopt Entire Chapter 

Adopt Entire Chapter as amended 
(amended sections listed below) 

Adopt only those sections that are 
listed below 

Chapter/Section 
1003.1 Exception 2 



1 BSC 

! x 



SFM 



101 0.2 & subsections 

1010.3 

1010.4 



3 01 0.5 & subsections 

1014.1 A 

1014.1 B 

10I4.1C 

1015.6 

1015.7 



HCD 
2 11-ACi AC 



X i X 



X X 



DSA 

SS SS/CC 1 

X : X. 



\ x 

I x 
I x 

1 X 



OSHPD 
2 3 



BSCC DPH AGR 



x ; x x x 



x 
x 
x 
x 



DWR CA SL SLC 



2013 CALIFORNIA PLUMBING CODE 



179 



2013 CALIFORNIA PLUMBING CODE 



CHAPTER 10 

TRAPS AND INTERCEPTORS 



1001.0 Traps Required. 

1001.1 Where Required. Each plumbing fixture, shall be 
separately trapped by an approved type of liquid seal trap. 
This section shall not apply to fixtures with integral traps. 
Not more than one trap shall be permitted on a trap arm. 
Food waste disposal units installed with a set of restaurant, 
commercial, or industrial sinks shall be connected to a sep- 
arate trap. Each domestic clothes washer and each laundry 
tub shall be connected to a separate and independent trap, 
except that a trap serving a laundry tub shall be permitted 
to also receive the waste from a clothes washer set adja- 

1 cent thereto. The vertical distance between a fixture outlet 
and the trap weir shall be as short as practicable, but in no 
case shall the tailpiece from a fixture exceed 24 inches 

S (610 mm) in length. One trap shall be permitted to serve a 
set of not more than three single compartment sinks or laun- 
dry tubs of the same depth or three lavatories immediately 
adjacent to each other and in the same room where the waste 
outlets are not more than 30 inches (762 mm) apart and the 
trap is centrally located where three compartments are 
installed. 

1002.0 Traps Protected by Vent Pipes. 

1002.1 Vent Pipes. Each plumbing fixture trap, except as 
otherwise provided in this code, shall be protected against 
siphonage, backpressure, and air circulation shall be 

1 assured throughout the drainage system by means of a vent 
pipe installed in accordance with the requirements of this 
code. 

1002.2 Fixture Traps. Each fixture trap shall have a pro- 
tecting vent so located that the developed length of the trap 
arm from the trap weir to the inner edge of the vent shall be 
within the distance given in Table 1002.2, but in no case 
less than two times the diameter of the trap arm. 

10023 Change of Direction. A trap arm shall be permitted 
to change direction without the use of a cleanout where 
such change of direction does not exceed 90 degrees (1.57 



rad). Horizontal changes in direction of trap arms shall be 
in accordance with Section 706.3. 

Exception: For trap arms 3 inches (80 mm) in diameter and 
larger, the change of direction shall not exceed 135 degrees 
(2.36 rad) without the use of a cleanout. 

1002.4 Vent Pipe Opening. The vent pipe opening from a 
soil or waste pipe, except for water closets and similar fix- 
tures, shall not be below the weir of the trap. 

1003.0 Traps — Described. 

1003.1 General Requirements. Each trap, except for traps 
within an interceptor or similar device shall be self-clean- 
ing. Traps for bathtubs, showers, lavatories, sinks, laundry 
tubs, floor drains, urinals, drinking fountains, dental units, 
and similar fixtures shall be of standard design, weight and 
shall be of ABS, cast-brass, cast-iron, lead, PP, PVC, or 
other approved material. An exposed and readily accessible 
drawn-brass tubing trap, not less than 17 B & S Gauge 
(0.045 inch) (0.114 mm), shall be permitted to be used on 
fixtures discharging domestic sewage. 

Exceptions: 

(1 ) Drawn-brass tubing traps shall not be used for urinals. 
Each trap shall have the manufacturer's name stamped 
legibly in the metal of the trap, and each tubing trap 
shall have the gauge of the tubing in addition to the 
manufacturer's name. A trap shall have a smooth and 
uniform interior waterway. 

(2) [HCD 1 &. HCD 2] Non- water supplied urinals conform- 
ing to ASME A 1 12. J 9. 1 9-2006, Standard for Vitreous 
China Non water Urinals, or reference standards in Table 
1401.1 for non-vitreous ceramic or plastic urinal fixtures. 

1003.2 Slip Joint Fittings. A maximum of one approved 
slip joint fitting shall be permitted to be used on the outlet 
side of a trap, and no tubing trap shall be installed without a 
listed tubing trap adapter. Listed plastic trap adapters shall 
be permitted to be used to connect listed metal tubing traps. 



TABLE 1002.2 
HORIZONTAL LENGTHS OF TRAP ARMS 
(EXCEPT FOR WATER CLOSETS AND SIMILAR FIXTURES) 1 ' 2 
TRAP ARM PIPE DIAMETER (inches) DISTANCE TRAP TO VENT MINIMUM (inches) LENGTH MAXIMUM (inches) 

VA 2 l A 30 

Wi 3 42 

2 4 60 

3 6 72 

4 8 1 20 

Exceeding 4 2 x Diameter 1 20 

For SI units: 1 inch = 25.4 mm 
Notes: 

1 Maintain ] A inch per foot slope (20.8 inm/m). 

* The developed length between the trap of a water closet or similar fixture (measured from the top of the closet flange to the inner edge of the vent) and its 
vent shall not exceed 6 feel (1 829 mm). 



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10033 Size. The size (nominal diameter) of a trap for a 
given fixture shall be sufficient to drain the fixture rapidly, 
but in no case less than nor more than one pipe size larger 
than given in Table 702.1. The trap shah be the same size 
as the trap arm to which it is connected. 

1004.0 Traps. 

1004.1 Prohibited. No form of trap that depends for its 
seal upon the action of movable parts shall be used. No trap 
that has concealed interior partitions, except those of plas- 
tic, glass, or similar corrosion-resisting material, shall be 
used. M S" traps, bell traps, and crown-vented traps shall be 
prohibited. No fixture shall be double trapped. Drum and 
bottle traps shall be installed for special conditions. No trap 
shall be installed without a vent, except as otherwise pro- 
vided in this code. 

1004.2 Movable Parts. Bladders, check valves or other 
type of devices with moveable parts shall be prohibited to 
serve as a trap. 

1005.0 Trap Seals. 

1005.1 General Each fixture trap shall have a liquid seal 
of not less than 2 inches (51 mm) and not more than 4 inch- 
es (102 mm), except where a deeper seal is found necessary 
by the Authority Having jurisdiction. Traps shall be set true 
with respect to their liquid seals and, where necessary, they 
shall be protected from freezing. 

1006.0 Floor Drain Traps. 

1006.1 General. Floor drains shall connect into a trap so 
constructed that it can be readily cleaned and of a size to 
serve efficiently the purpose for which it is intended. The 

i drain inlet shall be so located that it is in full view. Where 
subject to reverse How of sewage or liquid waste, such 
drains shall be equipped with an approved backwater valve. 

1007.0 Trap Seal Protection. 

.1.007.1 General. Floor drain or similar traps directly con- 
nected to the drainage system and subject to infrequent use 
shall be protected with a trap seal primer, except where not 
deemed necessary for safety or sanitation by the Authority 
Having Jurisdiction. Trap seal primers shall be accessible 
for maintenance. 

.1008.0 Building Traps. 

1008.1 General Building traps shall not be installed except 
where required by the Authority Having Jurisdiction. Each 
building trap where installed shall be provided with a 
cleanout and with a relieving vent or fresh-air intake on the 
inlet side of the trap, which need not be larger than one-half 
the diameter of the drain to which it connects. Such reliev- 
ing vent or fresh-air intake shall be carried above grade and 
terminate in a screened outlet located outside the building. 



1009.0 Industrial Interceptors (Clarifiers) and 
Separators. 

1009.1 Where Required. Interceptors (clarifiers) (includ- 
ing grease, oil, sand interceptors [clarifiers], etc.) shall be 
required by the Authority Having Jurisdiction where they 
are necessary for the proper handling of liquid wastes con- 
taining grease, flammable wastes, sand, solids, acid or alka- 
line substances, or other ingredients harmful to the building 
drainage system, the public or private sewer, or to public or 
private sewage disposal 

1009.2 Approval. The size, type, and location of each 
interceptor (clarifier) or separator shall be approved by the 
Authority Having Jurisdiction. Except where otherwise 
specifically permitted, no wastes other than those requiring 
treatment or separation shall be discharged into an intercep- 
tor (clarifier). 

10093 Design. Interceptors (clarifiers) for sand and similar 
heavy solids shall be so designed and located as to be readi- 
ly accessible for cleaning and shall have a water seal of not 
less than 6 inches (152 mm). 

.1009.4 Relief Vent Interceptors (clarifiers) shall be so 
designed that they will not become air-bound where closed 
covers are used. Each interceptor (clarifier) shall be proper- 
ly vented. 

.1009.5 Location. Each interceptor (clarifier) cover shall be 
readily accessible for servicing and maintaining the inter- 
ceptor (clarifier) in working and operating condition. The 
use of ladders or the removal of bulky equipment in order 
to service interceptors (clarifiers) shall constitute a viola- 
tion of accessibility. Location of interceptors (clarifiers) 
shall be shown on the approved building plan. 

100.9.6 Maintenance of Interceptors. Interceptors shall be 
maintained in efficient operating condition by periodic 
removal of accumulated grease, scum, oil, or other floating 
substances and solids deposited in the interceptor. 

1009.7 Discharge. The waste pipe from oil and sand inter- 
ceptors shall discharge as approved by the Authority 
Having Jurisdiction. 

1010.0 Slaughterhouses, Packing Establishments, etc. 

.1010.1 General. A fish, fowl, and animal slaughterhouse or 
establishment; a fish, fowl, and meat packing or curing 
establishment; a. soap factory, tallow-rendering, fat-render- 
ing, and a hide-curing establishment shall be connected to 
and shall drain or discharge into an approved grease inter- 
ceptor (clarifier). 

1010.2 I AGE I Meat and Poultry Processing Plants. 

1010.2.1 Drainage and Plumbing Systems. Drainage 
and plumbing systems shall meet the requirements of 
Section 724.0. 

10.10.2.. LI Each floor drain shall be equipped 
with a deep-seal trap. 

1.010.2.2 The plumbing shall be installed so as to pre- 
vent sewage from, backing up and flooding the floor. 

Exception: Floor drains in areas not regularly washed 
down will be acceptable with deep-seal traps, provided 



182 



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that such drains are connected to secondary drainage 
systems discharging into a safe sink or basin (air gap) 
that is properly trapped and vented, and that such 
drains accomplish the objectives and intent of this sec- 
tion. 

1010.2.3 Interceptor traps which are connected with 
the sewer system shall not be near any edible products 
department or in any area where products are unload- 
ed from or loaded into vehicles. To facilitate cleaning, 
such traps shall have inclined bottoms and be provided 
with suitable covers. 

1010 J [AGR] Collection Centers and Facilities. All drains 
shall be properly installed with adequate deep-sealed traps 
of the conventional "P, " or "S" type and vents. 

1010.4 [AGR] Horse Meat and Pet Food Establishments. 
There shall be an efficient drainage and plumbing system 
for the establishment and. premises. All drains and gutters 
shall be installed with traps and vents approved by the 
Department 

1010.5 [AGR/ Draining and Plumbing. There shall be an 
efficient drainage and plumbing system for the plant and 
premises. 

1010.5.1 Drainage and Gutters. All drains and gutters 
shall be properly installed with approved traps and 
vents. The drainage and plumbing system must permit 
the quick runoff of all water from plant buildings, and 
of surface water around the plant on the premises, and 
all such water shall be disposed of in such a manner as 
to prevent a nuisance or health hazard. 

1010.5.2 Sewage and Plant Waste, The sewer system 
have adequate slope and capacity to remove readily all 
waste from the various processing operations and to 
minimize, or if possible, prevent stoppage and sur- 
charging of the system. When the sewage disposal sys- 
tem is a private system which is required to be 
approved by a state or local health authority, the appli- 
cant shall f urnish the administrator a letter from the 
proper health authority indicating that the sewage dis- 
posal system is acceptable to such authority. 

1.0.11.0 Minimum Requirements for Auto Wash Racks. 

1011.1 General. A private or public wash rack, or floor or 
slab used for cleaning machinery or machine parts shall be 
adequately protected against storm or surface water and shall 
drain or discharge into an approved interceptor (clarifier). 

1012.0 Commercial and Industrial Laundries. 

101.2.1 General. Laundry equipment in commercial and 
industrial buildings that does not have integral strainers 
shall discharge into an interceptor having a wire basket or 
similar device that is removable for cleaning and that will 
prevent passage into the drainage system of solids Vi of an 
inch (12.7 mm) or larger in maximum dimension, such as 
string, rags, buttons, or other solid materials detrimental to 
the public sewerage system. 



1013.0 Bottling Establishments. 

1013.1 General. Bottling plants shall discharge their pro- 
cess wastes into an interceptor that will provide for the sep- 
aration of broken glass or other solids, before discharging 
liquid wastes into the drainage system. 

101.4.0 Grease Interceptors. 

1014.1 Where Required. Where it is determined by the 
Authority Having Jurisdiction that waste pretreatment is 
required, an approved type of grease interceptor(s) in accor- 
dance with the provisions of this section shall be correctly 
sized and properly installed in grease waste line(s) leading 
from sinks and drains, such as floor drains, floor sinks, and 
other fixtures or equipment in serving establishments such 
as restaurants, cafes, lunch counters, cafeterias, bars and 
clubs, hotels, hospitals, sanitariums, factory or school 
kitchens, or other establishments where grease is intro- 
duced into the drainage or sewage system in quantities that 
can effect line stoppage or hinder sewage treatment or pri- 
vate sewage disposal. A combination of hydromechanieal, 
gravity grease interceptors, and engineered systems shall be 
allowed in order to meet this code and other applicable 
requirements of the Authority Having Jurisdiction where 
space or existing physical constraints of existing buildings 
necessitate such installations. A grease interceptor shall not 
be required for individual dwelling units or for private liv- 
ing quarters. Water closets, urinals, and other plumbing fix- 
tures conveying human waste shall not drain into or 
through the grease interceptor. 

1014.1A fOSHPD 1, 2, 3 & 4/ The Authority Having 
Jurisdiction is the individual official, board, department or 
agency authorized to administer and enforce the sewage 
treatment system in the area of the location of the health 
facility. 

1014.1 B fOSHPD i, 2, 3 & 4/ Grease interceptors shall II 
not be installed in food preparation area of the kitchens. 

1014JC [OSHPD /, 2, 3 & 4] Grease interceptors shall be 
installed outside of the kitchen area in location affording 
ease of maintenance and servicing. 

10.14.1.1 Trapped and Vented. Each fixture discharg- 
ing into a grease interceptor shall be individually 
trapped and vented in an approved manner. 

1014.1.2 Maintenance. Grease interceptors shall be 
maintained in efficient operating condition by periodic 
removal of the accumulated grease and latent material. 
No such collected grease shall be introduced into 
drainage piping or a public or private sewer. Where the 
Authority Having Jurisdiction determines that a grease 
interceptor is not being properly cleaned or maintained, 
the Authority Having Jurisdiction shall have the 
authority to mandate the installation of additional 
equipment or devices and to mandate a maintenance 
program. 

10.1.4.1.3 Food Waste Disposal Units and 
Dishwashers. Unless specifically required or permitted 
by the Authority Having Jurisdiction, no food waste 
disposal unit or dishwasher shall be connected to or 



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discharge into a grease interceptor. Commercial food 
waste disposers shall be permitted to discharge directly 
into the building's drainage system. 

101.4.2 Hydromechanical Grease Interceptors. Plumbing 
fixtures or equipment connected to a Type A and B 
hydromechanical grease interceptor shall discharge through 
an approved type of vented flow control installed in a readi- 
ly accessible and visible location. Flow control devices 
shall be designed and installed so that the total flow 
through such device or devices shall at no time be greater 
than the rated flow of the connected grease interceptor. No 
flow control device having adjustable or removable parts 
shall be approved. The vented flow control device shall be 
located such that no system vent shall be between the flow 
control and the grease interceptor inlet. The vent or air inlet 
of the flow control device shall connect with the sanitary 
drainage vent system, as elsewhere required by this code, or 
shall terminate through the roof of the building, and shall 
not terminate to the free atmosphere inside the building. 

Exception: Listed grease interceptors with integral flow 
controls or restricting devices shall be installed in an acces- 
sible location in accordance with the manufacturer's instal- 
lation instructions. 

1.014.2.1. Capacity. The total capacity in gallons (gal) 
(L) of fixtures discharging into a hydromechanical 



grease interceptor shall not exceed two and one-half 
times the certified gallon per minute (gpm) (L/s) flow 
rate of the interceptor in accordance with Table 
1014.2.1. 

For the purpose of this section, the term "fixture" 
shall mean and include each plumbing fixture, appli- 
ance, apparatus, or other equipment required to be con- 
nected to or discharged into a grease interceptor by a 
provision of this section. 

1.014.2.2 Vent. A vent shall be installed downstream of 
hydromechanical grease interceptors in accordance 
with the requirements of this code. 

1014.3 Gravity Grease Interceptors. Required gravity 
grease interceptors shall comply with the provisions of 
Section 1014.3.1 through Section 1014.3.7. 

1014.3.1. General. The provisions of this section shall 
apply to the design, construction, installation, and test- 
ing of commercial kitchen gravity grease interceptors. 

1014.3.2 Waste Discharge Requirements. Waste dis- 
charge in establishments from fixtures and equipment 
which contain grease, including but not limited to, 
scullery sinks, pot and pan sinks, dishwashers, soup 
kettles, and floor drains located in areas where grease- 
containing materials exist, shall be permitted to be 



DIAMETER OF GREASE 
WASTE PIPE (inches) 

2 
3 
4 

5 

6 



TABLE 1014.2.1 

HYDROMECHANICAL GREASE INTERCEPTOR SIZING USING GRAVITY FLOW RATES 1 

SIZE OF GREASE INTERCEPTOR 



MAXIMUM FULL PIPE FLOW (gpm)^ 



20 
60 
125 



230 
375 



ONE-MINUTE DRAINAGE 
PERIOD (gpm) 

20 

75 

150 

250 

500 



TWO-MINUTE DRAINAGE PERIOD (gpm): 

io ; 

^ 35 

75 



125 
250 



For SI units: I inch = 25 mm, I gallon per minute = 0.06 L/s 
Notes: 

1 For interceptor sizing by fixture capacity see the example below. 
\A inch slope per foot (20.8 mm/ni) based on Manning's formula with friction factor N= .012. 

EXAMPLE 1014.2.1 

SIZING HYDROMECHANICAL GREASE SNTERCEPTOR(S) USING FIXTURE CAPACITY 
Step 1: Determine the flow rate from each fixture. 

[Length] X [Width] X [Depth] / [23 1] - Gallons X [.75 fill factor] / [Drain Period (1 minute or 2 minutes)] 



Step 2: Calculate the total load from fixtures that discharge into the interceptor. 

SIZE OF GREASE INTERCEPTOR ONE- ! TWO-MINUTE DRAINAGE 
MINUTE DRAINAGE PERIOD (gpm) j PERIOD (gpm) 



FIXTURES 



COMPARTMENTS LOAD (gallons) 



Compartment size 
24 inches x 24 inches x 12 inches 
Hydrant 

Rated Appliance 



2 ! 44.9 

— I 3 
| 2 

— 49.9 
For SI units: 1 inch ^ 25.4 mm, I gallon per minute - 0.06 L/s, I gallon = 3.785 L 



50 



25 



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drained into the sanitary waste through the interceptor 
where approved by the Authority Having Jurisdiction. 

1014.3.2.1 Toilets and Urinals. Toilets, urinals, 
and other similar fixtures shall not drain through 
the interceptor. 

1014.3.2.2 Inlet Pipe. Waste shall enter the inter- 
ceptor through the inlet pipe. 

1014.3.3 Design. Gravity interceptors shall be con- 
structed in accordance with the applicable standard in 
Table 1 40 1 . 1 or the design approved by the Authority 
Having jurisdiction. 

1014.3.4 Location. Each grease interceptor shall be so 
1 installed and connected that it shall be easily accessible 

for inspection, cleaning, and removal of the intercepted 
grease. A gravity grease interceptor in accordance with 
1 IA'PMO Z1001, shall not be installed in a building 
where food is handled. Location of the grease intercep- 
tor shall meet the approval of the Authority Having 
Jurisdiction. 

1014.3.4.1 Interceptors. Interceptors shall be 
placed as close as practical to the fixtures they 
serve. 

1014.3.4.2 Business Establishment. Each business 
establishment for which a gravity grease interceptor 
is required shall have an interceptor which shall 
serve that establishment unless otherwise approved 
by the Authority Having Jurisdiction. 

1014.3.4.3 Access. Each gravity grease interceptor 
shall be located so as to be readily accessible to 
the equipment required for maintenance. 

1014.3.5 Construction Requirements. Gravity grease 
interceptors shall be designed to remove grease from 
effluent and shall be sized in accordance with this sec- 
tion. Gravity grease interceptors shall also be designed 
to retain grease until accumulations can be removed by 
pumping the interceptor. It is recommended that a sam- 
ple box be located at the outlet end of gravity grease 
interceptors so that the Authority Having Jurisdiction 
can periodically sample effluent quality. 

1014.3.6 Sizing Criteria. The volume of the intercep- 
tor shall be determined by using Table 1014.3.6. 
Where drainage fixture units (DFUs) are not known, 
the interceptor shall be sized based on the maximum 
DFUs allowed for the pipe size connected to the inlet 
of the interceptor. Refer to Table 703.2, Drainage 
Piping, Horizontal. 

1014.3.7 Abandoned Gravity Grease Interceptors. 
Abandoned grease interceptors shall be pumped and 
filled as required for abandoned sewers and sewage 
disposal facilities in Section 722.0. 

1015.0 FOG (Fats, Oils, and Greases) Disposal System. 

1015.1 Purpose. The purpose of this section is to provide 
the necessary criteria for the sizing, application, and instal- 
lation of FOG disposal systems designated as a pretreat- 
ment or discharge water quality compliance strategy. 



TABLE 1014.3.6 
GRAVITY GREASE INTERCEPTOR SIZING 



FIXTURE UNITS 1 ' 3 


INTERCEPTOR VOLUME 2 


(DFUs) 


(gallons) 


8 


500 


21 


750 


35 


1 000 


90 


1250 


1 72 


1 500 


216 


2000 


307 


2500 


342 


3000 


428 


4000 


576 


5000 


720 


7500 


2112 


10 000 


2640 


15 000 



For SI units: I gallon = 3.785 L 
Notes: 

1 The maximum allowable DFUs plumbed to the kitchen drain lines that 
will be connected to the grease interceptor. 

" This size is based on: DFUs, the pipe size from this code; Table 703.2; 
Useful Tables for flow in half-full pipes (ref; Uolunder Nayyar Piping 
Handbook, 3rd Edition, 1992). Based on 30-minute retention time (ref.: 
George Tchobanoglous and Metcalf & Eddy. Wastewater Engineering 
Treatment, Disposal and Reuse, 3rd Ed. 1991 & Ronald Crites and George 
Tchobanoglous. Small and Decentralized Wastewater Management 
Systems, 1998). Rounded up to nominal interceptor volume. 

3 Where the flow rate of directly connected l ixtui ei s) or appliances) have 
no assigned DFU values, the additional grease interceptor volume shall 
be based on the known flow rate (gpm) (L s) multiplied by 30 minutes. 

1015.2 Scope. FOG disposal systems shall be considered 
engineered systems and shall be in accordance with the 
requirements of Section 301.4 of this code. 

1015.3 Components, Materials, and Equipment. FOG 
disposal systems, including components, materials, and 
equipment necessary for the proper function of the system, 
shall be in accordance with Section 301.1.2 or Section 
301.2 of this code. 

1015.4 Sizing Application and Installation. FOG disposal 
systems shall be engineered, sized, and installed in accor- 
dance with die manufacturer's installation instructions and 1 
as specified in A.SM.E Al 12.14.6, as listed in Table 1401.1 
of this code. 

1015.5 Performance. FOG disposal systems shall be tested 
and certified as listed in Table 1401.1 of this code, and 
other national consensus standards applicable to FOG dis- 
posal systems as discharging a maximum of 5.84 grains per 
gallon (gr/gal) ( 1 00 mg/L) FOG . 

1015.6 [OSHPD 1, 2, 3 & 4] Grease interceptors shall not 
be installed in food preparation area of kitchens. 

1015.7 [OSHPD h 2, 3 & 4] Grease interceptors shall be 
installed outside of the kitchen area in location affording 
ease of maintenance and servicing. 



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.EXAMPLE 101.4.3.6 
GRAVITY GREASE INTERCEPTOR SIZING EXAMPLE 

Given: A restaurant with the following fixtures and equip- 
ment. 

One food preparation sink; three floor drains - one in the 
food prep area, one in the grill, area, and one receiving the 
indirect waste from the ice machine and a mop sink. 

Kitchen Drain Line DFU Count (from Table 702.1): 
3 floor drains at 2 DFUs each = 6 DFUs 
Mop sink at 3 DFUs each = 3 DFUs 

Food prep sink at 3 DFUs each = 3 DFUs 
Total = 12 DFUs 

Using Table 1014.3.6, the grease interceptor will be sized 
at 750 gallons (2389 L). 

1016.0 Sand Interceptors. 

1016.1 Discharge. Where the discharge of a fixture or 
drain contain solids or semi-solids heavier than water that 
would be harmful to a drainage system or cause a stoppage 
within the system, the discharge shall be through a sand 
interceptor. Multiple floor drains shall be permitted to dis- 
charge into one sand interceptor. 

1016.2 Authority Having Jurisdiction. Sand interceptors 
are required where the Authority Having Jurisdiction 
deems it advisable to have a sand interceptor to protect the 
drainage system. 

1016.3 Construction and Size. Sand interceptors shall be 
built of brick or concrete, prefabricated coated steel, or 
other watertight material. The interceptor shall have an 
interior baffle for full separation of the interceptor into two 
sections. The outlet pipe shall be the same size as the inlet 
pipe of the sand interceptor, the minimum being 3 inches 
(80 mm), and the baffle shall have two openings of the 
same diameter as the outlet pipe and at the same invert as 
the outlet pipe. These openings shall be staggered so that 
there cannot be a straight line flow between the inlet pipe 
and the outlet pipe. The invert of the inlet pipe shall be no 
lower than the invert of the outlet pipe. 

The sand interceptor shall have a minimum dimension 
of 2 square feet (0.2 m 2 ) for the net free opening of the inlet 
section and a minimum depth under the invert of the outlet 
pipe of 2 feet (610 mm). 

For each 5 gpm (0.3 L/s) flow or fraction thereof over 
20 gpm (1 .26 L/s), the area of the sand interceptor inlet sec- 
tion is to be increased by 1 square foot (0.09 m 2 ). The out- 
let section shall at all times have a minimum area of 50 per- 
cent of the inlet section. 

The outlet section shall be covered by a solid remov- 
able cover, set flush with the finished floor, and the inlet 
section shall have an open grating, set flush with the fin- 
ished floor and suitable for the traffic in the area in which it 
is located. 



1016.4 Separate Use. Sand and similar interceptors for 
every solid shall be so designed and located as to be readily 
accessible for cleaning, shall have a water seal of not less 
than 6 inches (152 mm), and shall be vented. 

1.017.0 Oil and Flammable Liquid Interceptors. 

1017.1 Interceptors Required. Repair garages and gaso- 
line stations with grease racks or grease pits, and factories 
that have oily, flammable, or both types of wastes as a 
result of manufacturing, storage, maintenance, repair, or 
testing processes, shall be provided with an oil or 
flammable liquid interceptor that shall be connected to nec- 
essary floor drains. The separation or vapor compartment 
shall be independently vented to the outer air. Where two or 
more separation or vapor compartments are used, each shall 
be vented to the outer air or shall be permitted to connect to 
a header that is installed at a minimum of 6 inches (152 
mm) above the spill line of the lowest floor drain and vent- 
ed independently to the outer air. The minimum size of a 
flammable vapor vent shall be not less than 2 inches (51 
mm), and, where vented through a sidewall, the vent shall 
be not less than 10 feet (3048 mm) above the adjacent level 
at an approved location. The interceptor shall be vented on 
the sewer side and shall not connect to a flammable vapor 
vent. Oil and flammable interceptors shall be provided with 
gastight cleanout covers that shall be readily accessible. 
The waste line shall be not less than 3 inches (80 mm) in 
diameter with a full-size cleanout to grade. Where an inter- 
ceptor is provided with an overflow, it shall be provided 
with an overflow line [not less than 2 inches (50 mm) in 
diameter] to an approved waste oil tank having a minimum 
capacity of 550 gallons (2082 L) and meeting the require- 
ments of the Authority Having Jurisdiction. The waste oil 
from the separator shall flow by gravity or shall be pumped 
to a higher elevation by an automatic pump. Pumps shall be 
adequately sized and accessible. Waste oil tanks shall have 
a 2 inch (50 mm) minimum pump-out connection at grade 
and a VA inch (38 mm) minimum vent to atmosphere at an 
approved location not less than 10 feet (3048 mm) above 
grade. 

1017.2 Design of Interceptors. Each manufactured inter- 
ceptor that is rated shall be stamped or labeled by the man- 
ufacturer with an indication of its full discharge rate in gpm 
(L/s). The full discharge rate to such an interceptor shall be 
determined at full flow. Each interceptor shall be rated 
equal to or greater than the incoming flow and shall be pro- 
vided with an overflow line to an underground tank. 

Interceptors not rated by the manufacturer shall have a 
depth of not less than 2 feet (610 mm) below the invert of 
the discharge drain. The outlet opening shall have not less 
than an 18 inch (457 mm) water seal and shall have a mini- 
mum capacity as follows: Where not more than three motor 
vehicles are serviced, stored, or both, interceptors shall 
have a minimum capacity of 6 cubic feet (0.2 m 3 ), and 1 
cubic foot (0.03 m 3 ) of capacity shall be added for each 
vehicle up to 10 vehicles. Above 10 vehicles, the Authority 



186 



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Having Jurisdiction shall determine the size of the intercep- 
tor required. Where vehicles are serviced and not stored, 
interceptor capacity shall be based on a net capacity of 1 
cubic foot (0.03 in 3 ) for each 100 square feet (9.29 m 2 ) of 
surface to be drained into the interceptor, with a minimum 
of 6 cubic feet (0.2 m 3 ). 



2013 CALIFORNIA PLUMBING CODE 



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CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 11 - STORM DRAINAGE 
(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.; 

HCD [ DSA OSHPD 

j 

2 ! 1-AC i AC ! SS SS/CC 1 



Adopting Agency 



BSC SFM 



Adopt Entire Chapter 

i Adopt Entire Chapter as amended 
(amended sections listed below) 

Adopt only those sections that are 
listed below 



Chapter/Section 

llul.3 

I 101.3.2 

1 1 01 .5 Exception 
I 102.1.1 
1102. 1.3 



1 



X ; X 



X X 

X i X 



X X 



BSCCl DPH AGR DWR \ CA j SL SLC 



X ; X X ; X 



X X X X 



XXXIX 



2013 CALIFORNIA PLUMBING CODE 



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CHAPTER 11 

STORM DRAINAGE 



1101.0 General. 

1101.1 Where Required. Roofs, paved areas, yards, 
I courts, courtyards, vent shafts, light wells, or similar areas 
I having rainwater, shall be drained into a separate storm 

sewer system, or into a combined sewer system where a 
separate storm sewer system is not available, or to some 
other place of disposal satisfactory to the Authority Having 
jurisdiction. In the case of one- and two-family dwellings, 
storm water shall be permitted to be discharged on flat 
areas, such as streets or lawns, so long as the storm water 
shall flow away from the building and away from adjoining 
property, and shall not create a nuisance. 
1.101.2 Storm Water Drainage to Sanitary Sewer 
Prohibited. Storm water shall not be drained into sewers 
intended for sanitary drainage. 

1101.3 Material Uses. Rainwater piping placed within the 
interior of a building or run within a vent or shaft shall be 
of cast-iron, galvanized steel, wrought iron, brass, copper, 
lead, Schedule 40 ABS DWV, Schedule 40 PVC DWV, 
stainless steel 304 or 316L [stainless steel 304 pipe and 
fittings shall not be installed underground and shall be kept 
not less than 6 inches (152 mm) aboveground], or other 
approved materials, and changes in direction shall be in 
accordance with the requirements of Section 706.0. ABS 
and PVC DWV piping installations shall be installed in 

|| accordance with IS 5 and IS 9. Except for individual single- 
family dwelling units, materials exposed within ducts or 
plenums shall have a flame-spread index of a maximum of 
25 and a smoke-developed index of a maximum of 50, 
1 where tested in accordance with ASTM E 84 and UL 723. 
H 1101.3.1 [HCD 1 $ HCD 2] ABS or PVC installations 
are limited to not more than two stories of areas of 
res iden tied accom modation . 

1101.3.2 IOSHPD U 2 , 3 y & 4] ABS and PVC instal- 
lations are not allowed. 

1101.4 Expansion Joints Required. Expansion joints or 
sleeves shall be provided where warranted by temperature 
variations or physical conditions. 

1101.5 Subsoil Drains. Subsoil drains shall be provided 
around the perimeter of buildings having basements, 
cellars, crawl spaces, or floors below grade. Such subsoil 
drains shall be permitted to be positioned inside or outside 
of the footing, shall be of perforated or open-jointed 
approved drain tile or pipe, not less than 3 inches (80 mm) 
in diameter, and shall be laid in gravel, slag, crushed rock, 
approved Va of an inch (19.1 mm) crushed, recycled glass 

S aggregate, or other approved porous material with not less 
than 4 inches (102 mm) surrounding the pipe. Filter media 
shall be provided for exterior subsoil piping. 
Exception: [HCD 1 & HCD 2] Subsoil drains are manda- 
tory only when required by the Authority Having Jurisdic- 
tion due to geological conditions. 

11 01. 5 A Discharge. Subsoil drains shall be piped to a 
storm drain, to an approved water course, to the front 



street curb or gutter, to an alley, or the discharge from 
the subsoil drains shall be conveyed to the alley by a 
concrete gutter. Where a continuously flowing spring 
or groundwater is encountered, subsoil drains shall be 
piped to a storm drain or an approved water course. 

1101.5.2 Sump. Where it is not possible to convey the 
drainage by gravity, subsoil drains shall discharge to 
an accessible sump provided with an approved auto- 
matic electric pump. The sump shall be not less than 
15 inches (381 mm) in diameter, 18 inches (457 mm) 
in depth, and provided with a fitted cover. The sump 
pump shall have an adequate capacity to discharge 
water coming into the sump as it accumulates to the 
required discharge point, and the capacity of the pump 
shall be not less than 15 gallons per minute (gpm) 
(0.95 L/s). The discharge piping from the sump pump 
shall be not less than 1 Vi inches (40 mm) in diameter 
and have a union or other approved quick-disconnect 
assembly to make the pump accessible for servicing. 

1101.5.3 Splash Blocks. For separate dwellings not 
serving continuously flowing springs or groundwater, 
the sump discharge pipe shall be permitted to discharge 
onto a concrete splash block with a minimum length of 
24 inches (610 mm). This pipe shall be within 4 inches 
(102 mm) of the splash block and positioned to direct 
the flow parallel to the recessed line of the splash block. 

1101.5.4 Backflow Protection. Subsoil drains subject 
to backflow where discharging into a storm drain shall 
be provided with a backwater valve in the drain line so 
located as to be accessible for inspection and mainte- 
nance. 

1101.5.5 Open Area. Nothing in Section 1 101.5 shall 
prevent drains that serve either subsoil drains or 
areaways of a detached building from discharging to a 
properly graded open area, provided that: 

(1) They do not serve continuously flowing springs or 
groundwater. 

(2) The point of discharge is not less than 10 feet 
(3048 mm) from a property line. 

(3) It is impracticable to discharge such drains to a 
storm drain, to an approved water course, to the 
front street curb or gutter, or to an alley. 

1101.6 Building Subdrains. Building subdrains located 
below the public sewer level shall discharge into a sump or 
receiving tank, the contents of which shal l be automatically 
lifted and discharged into the drainage system as required 
for building sumps. 

1101.7 Areaway Drains. Open subsurface space adjacent 
to a building, serving as an entrance to the basement or 
cellar of a building, shall be provided with a drain or 
drains. Such areaway drains shall be not less than 2 inches 
(50 mm) in diameter for areaways at a maximum of 100 
square feet (9.29 nr) in area, and shall be discharged in the 
manner provided for subsoil drains not serving continu- 



2013 CALIFORNIA PLUMBING CODE 



191 



STORM DRAINAGE 



ously flowing springs or groundwater (see Section 
110.1 .5.1). Areaways in excess of 100 square feet (9.29 m 2 ) 
shall not drain into subsoil drains. Areaway drains for 
areaways exceeding 100 square feet (9.29 m 2 ) shall be 
sized in accordance with Table 1 101.7. 

1101.8 Window Areaway Drains. Window areaways at a 
maximum of 10 square feet (0.93 m 2 ) in area shall be 
permitted to discharge to the subsoil drains through a 2 inch 
(50 mm) pipe. However, window areaways exceeding 10 
square feet (0.93 nr) in area shall be handled in the manner 
provided for entrance areaways (see Section 1101 .7). 

1101.9 Filling Stations and Motor Vehicle Washing 
Establishments. Public filling stations and motor vehicle 
washing establishments shall have the paved area sloped 
toward sumps or gratings within the property lines. Curbs 
not less than 6 inches (.1.52 mm) high shall be placed where 
required to direct water to gratings or sumps. 

1101.10 Paved Areas. Where the occupant creates surface 
water drainage, the sumps, gratings, or floor drains shall be 
piped to a storm drain or an approved water course. 

1101.11 Roof Drainage. 

1101.11.1 Primary Roof Drainage. Roof areas of a 
building shall be drained by roof drains or gutters. The 
location and sizing of drains and gutters shall be coor- 
dinated with the structural design and pitch of the roof. 
Unless otherwise required by the Authority Having 
Jurisdiction, roof drains, gutters, vertical conductors or 
leaders, and horizontal storm drains for primary 
drainage shall be sized based on a storm of 60 minutes 
duration and 100 year return period. Refer to Table D 
1.1 (in Appendix D) for 100 year, 60 minute storms at 
various locations. 

1101.11.2 Secondary Drainage. Secondary (emer- 
gency) roof drainage shall be provided by one of the 
methods specified in Section 1101.11 .2. 1 or Section 
I 101.1 1.2.2. 

1101.11.2.1 Roof Scuppers or Open Side. 
Secondary roof drainage shall be provided by an 
open-sided roof or scuppers where the roof 
perimeter construction extends above the roof in 
such a manner that water will be entrapped. An 
open-sided roof or scuppers shall be sized to 
prevent the depth of ponding water from 
exceeding that for which the roof was designed as 
determined by Section 1 101.1 1.1. Scupper open- 
ings shall be not less than 4 inches (102 mm) high 
and have a width equal to the circumference of the 
roof drain required for the area served, sized in 
accordance with Table 1101.11. 

1101.11.2.2 Secondary Roof Drain. Secondary 
roof drains shall be provided. The secondary roof 
drains shall be located not less than 2 inches (51 
mm) above the roof surface. The maximum height 
of the roof drains shall be a height to prevent the 
depth of ponding water from exceeding that for 
which the roof was designed as determined by 
Section I 101.1 1.1. The secondary roof drains shall 



connect to a piping system in accordance with 
Section 1 101. 1 1.2.2(A) or Section 1101.1 1.2.2(B). 

1101.11.2.2(A) Separate Piping System. The 
secondary roof drainage system shall be a 
separate system of piping, independent of the 
primary roof drainage system. The discharge 
shall be above grade, in a location observable 
by the building occupants or maintenance 
personnel. Secondary roof drain systems shall 
be sized in accordance with Section 1101.11.1 
based on the rainfall rate for which the 
primary system is sized. 

1.101.11.2.2(B) Combined System. The 
secondary roof drains shall connect to the 
vertical piping of the primary storm drainage 
conductor downstream of a horizontal offset 
below the roof. The primary storm drainage 
system shall connect to the building storm 
water that connects to an underground public 
storm sewer. The combined secondary and 
primary roof drain systems shall be sized in 
accordance with Section 1106.0 based on 
double the rainfall rate for the local area. 

1101.12 Cleanouts. Cleanouts for building storm drains 
shall comply with the requirements of Section 719.0 of this 
code. 

1101.1.2.1 Rain Leaders and Conductors. Rain 
leaders and conductors connected to a building storm 
sewer shall have a cleanout installed at the base of the 
outside leader or outside conductor before it connects 
to the horizontal drain. 

1101.13 Rainwater Sumps. Rainwater sumps serving 
"public use" occupancy buildings shall be provided with 
dual pumps arranged to function alternately in case of over- 
load or mechanical failure. 

1102.0 Materials. 

1102.1 Conductors. Conductors installed aboveground in 
buildings shall be in accordance with the applicable stan- 
dards referenced in Table 701.1 for aboveground drain, 
waste, and vent pipe. 

1102.1.1 Inside of Conductors. The inside of conduc- 
tors installed aboveground level shall be of seamless 
copper water tube, Type K, L, or M; Schedule 40 
copper pipe or Schedule 40 copper alloy pipe; Type 
DWV copper drainage tube; service weight cast-iron 
soil pipe or hubless cast-iron soil pipe; standard weight 
galvanized steel pipe; stainless steel 304 or 3 I 6L 
[stainless steel 304 pipe and fittings shall not be 
installed underground and shall be kept not less than 6 
inches (152 mm) aboveground]; or Schedule 40 ABS 
or Schedule 40 PVC plastic pipe. 

1102.1.2 [HCD 1] ABS or PVC installations are II 
limited to not more than two stories of areas of resi- 
de n Hal accommoda tion . 

1102JJ fOSHPD J, 2,3 & 4/ ABS and PVC installa- 
tions are not allowed. 



192 



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1102.2 Leaders. Leaders installed outside shall be in accor- 
dance with the applicable standards referenced in Table 
701.1 for aboveground drain, waste, and vent pipe; 
aluminum sheet metal; galvanized steel sheet metal; or 
copper sheet metal. 

1102.3 Underground Building Storm Drains. Under- 
ground building storm drains shall comply with the appli- 
cable standards referenced in Table 701.1 for underground 
drain, waste, and vent pipe. 

1102.4 Building Storm Sewers. Building storm sewers 
shall comply with the applicable standards referenced in 
Table 701 . 1 for building sewer pipe. 

1102.5 Subsoil Drains. Subsoil drains shall be open 
jointed, perforated, or both and constructed of materials in 
accordance with Table 1 102.5. 



TABLE 1102.5 
MATERIALS FOR SUBSOIL DRAIN PIPE AND FITTINGS 



MATERIAL 


REFERENCED STANDARD(S) 


Asbestos Cement 


ASTM C 444, ASTM C 508 


ASTM C 966 


PE 


ASTM F 405 


PVC 


ASTM D 2729 


Vitrified Clay (Extra strength) 


ASTM C 4, ASTM C 700 



1103.0 Traps on Storm Drains and Leaders. 

1 103.1 Where Required. Leaders and storm drains, where 
connected to a combined sewer, shall be trapped. Floor and 
area drains connected to a storm drain shall be trapped. 

Exception: Traps shall not be required where roof drains, 
rain leaders, and other inlets are at locations allowed under 
Section 906.0, Vent Termination. 

1103.2 Where Not Required. No trap shall be required for 
leaders or conductors that are connected to a sewer carrying 
storm water exclusively. 

1103.3 Trap Size. Traps, where installed for individual 
conductors, shall be the same size as the horizontal drain to 
which they are connected. 

1103.4 Method of Installation of Combined Sewer, indi- 
vidual storm-water traps shall be installed on the storm- 
water drain branch serving each storm-water inlet, or a 
single trap shall be installed in the main storm drain just 
before its connection with the combined building sewer. 
Such traps shall be provided with an accessible cleanout on 
the outlet side of the trap. 

1104.0 Leaders, Conductors, and Connections. 

1104.1 Improper Use. Leaders or conductors shall not be 
used as soil, waste, or vent pipes nor shall soil, waste, or 
vent pipes be used as leaders or conductors. 

1 104.2 Protection of Leaders. Leaders installed along 
alleyways, driveways, or other locations where exposed to 
damage shall be protected by metal guards, recessed into 
the wall, or constructed from ferrous pipe. 



1104.3 Combining Storm with Sanitary Drainage. The 
sanitary and storm drainage system of a building shall be 
entirely separate, except where a combined sewer is used, 
in which case the building storm drain shall be connected in 
the same horizontal plane through a single wye fitting to 
the combined building sewer not less than 10 feet (3048 
mm) downstream from a soil stack. 

1105.0 Roof Drains. 

1105.1 Materials. Requirements for roof drain materials 
shall comply with Section 1 105.1.1 and Section 1 105.1.2. 

1105.1.1 Lead. Roof drains shall be constructed of 
materials in accordance with Table 1401 . 1 . 

1105.1.2 Copper. Roof drains shall be of cast-iron, 
copper or copper alloy, lead, or plastic. 

1105.2 Dome or Strainer for General Use. Roof drains 
and overflow drains, except those draining to hanging 
gutters, shall be equipped with strainers extending not less 
than 4 inches (102 mm) above the surface of the roof 
immediately adjacent to the drain. Strainers shall have a 
minimum inlet area above the roof level not Jess than one 
and one-half times the area of the conductor or leader to 
which the drain is connected. 

1 105.3 Strainers for Flat Decks. Roof drain strainers for 
use on sun decks, parking decks, and similar areas that are 
normally serviced and maintained, shall be permitted to be 
of the flat surface type. Such roof drain strainers shall be 
level with the deck and shall have an available inlet area of 
not less than two times the area of the conductor or leader 
to which the drain is connected. 

1105.4 Roof Drain Flashings. Connection between the 
roof and roof drains that pass through the roof and into the 
interior of the building shall be made watertight by the use 
of proper flashing material. 

1105.4.1 Lead Flashing. Where lead flashing material 
is used, it shall be not less than 4 pounds per square 
foot (lb/ft 2 ) (19 kg/m 2 ). 

1105.4.2 Copper Flashing. Where copper flashing 
material is used, it shall be not less than 12 ounces per 
square foot (oz/ft 2 ) (3.7 kg/m 2 ). 

1106.0 Size of Leaders, Conductors, and Storm Drains. 

1106.1 Vertical Conductors and Leaders. Vertical 
conductors and leaders shall be sized on the basis of the 
maximum projected roof area and Table 1 101.1 1. 

1106.2 Size of Horizontal Storm Drains and Sewers. The 
size of building storm drains or building storm sewers or 
their horizontal branches shall be based upon the maximum 
projected roof or paved area to be handled and Table 
1101.7. 

1106.3 Size of Roof Cutters. The size of semi-circular 
gutters shall be based on the maximum projected roof area 
and Table 1106.3. 

1106-4 Side Walls Draining onto a Roof. Where vertical 
walls project above a roof so as to permit storm water to 



2013 CALIFORNIA PLUMBING CODE 



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STORM DRAINAGE 



drain to the roof area below, the adjacent roof area shall be 
permitted to be computed from Table 1 101.1 1 as follows: 

(1 ) For one wall - add 50 percent of the wall area to the 
roof area figures. 

(2) For two adjacent walls of equal height - add 35 percent 
of the total wall areas. 

(3) For two adjacent walls of unequal height - add 35 
percent of the total common height and add 50 percent 
of the remaining height of the highest wall. 

(4) Two opposite walls of same height - add no additional 
area. 

(5) Two opposite walls of differing heights - add 50 
percent of the wal l area above the top of lower wall . 

(6) Walls on three sides - add 50 percent of the area of the 
inner wall below the top of the lowest wall, plus 
allowance for the area of the wall above the top of the 
lowest wall, in accordance with Section 1106.4(3) and 
Section 1 1 06.4(5) above. 

(7) Walls on four sides - no allowance for wall areas 
below the top of the lowest wall - add for areas above 
the top of the lowest wall in accordance with Section 
I 106.4(1). Section 1106.4(3), Section 1106.4(5), and 
Section 1 106.4(6) above. 

1107.0 Values for Continuous Flow. 

11.07.1 General. Where there is a continuous or semi- 
continuous discharge into the building storm drain or 
building storm sewer, as from a pump, ejector, air-condi- 
tioning plant, or similar device, 1 gpm (0.06 L/s) of such 
discharge shall be computed as being equivalent to 24 
square feet (2.2 nr) of roof area, based upon a rate of rain- 
fall of 4 inches per hour (in/h) (102 mm/h). 

1108.0 Controlled-Flow Roof Drainage. 

1108.1 Application. In lieu of sizing the storm drainage 
system in accordance with Section 1106.0, the roof 
drainage shall be permitted to be sized on the basis of 
controlled flow and storage of the storm water on the roof, 
provided the following conditions are met: 

(1) The water from a 25 year-frequency storm shall not be 
stored on the roof exceeding 24 hours. 

(2) During the storm, the water depth on the roof shall not 
exceed the depths specified in Table 1 108.1(2). 

(3) Not less than two drains shall be installed in roof areas 
of 10 000 square feet (929 m 2 ) or less, and not less 
than one additional drain shall be installed for each 10 
000 square feet (929 nr ) of roof area exceeding 10 000 
square feet (929 nr). 

(4) Each roof drain shall have a precalibrated, fixed 
(nonadjustable), and proportional weir (notched) in a 
standing water collar inside the strainer. No mechan- 
ical devices or valves shall be allowed. 



TABLE 1108.1(2) 

CONTROLLED-FLOW MAXIMUM ROOF WATER DEPTH 

MAXIMUM WATER DEPTH 
AT DRAIN 
(inches) 



ROOF RISE 
(inches) 

Flat 
2 



3 
4 
5 
6 



For SI units: ] inch = 25.4 mm 

* Vertical measurement from the roof surface at the drain to the highest 
point of the roof surface served by the drain, ignoring a local depression 
immediately adjacent to the drain. 



(5) Pipe sizing shall be based on the pre-calibrated rate of 
flow (gpm) (L/s) of the pre-calibrated weir for the 
maximum allowable water depth, and Table 1101.7 
and Table 1101.11, 

(6) The height of stones or other granular material above the 
waterproofed surface shall not be considered in water 
depth measurement, and the roof surface in the vicinity 
of the drain shall not be recessed to create a reservoir. 

(7) Roof design, where controlled-flow roof drainage is 
used, shall be such that the design roof live load is not 
less than 30 lb/ft 2 (146 kg/m 2 ) to provide a safety 
factor exceeding the 15 lb/ft 2 (73 kg/m 2 ) represented 
by the depth of water stored on the roof in accordance 
with Table I 108.1(2). 

(8) Scuppers shall be provided in parapet walls. The 
distance of scupper bottoms above the roof level at the 
drains shall not exceed the maximum distances speci- 
fied in Table 1108.1(8). 

TABLE 1108.1(8) 
DISTANCE OF SCUPPER BOTTOMS ABOVE ROOF 



ROOF RISE 
(inches) 

Flat 

2 

4 

6 



ABOVE ROOF LEVEL AT DRAIN 
(inches) 



For SI units: 1 inch = 25.4 mm 

* Vertical measurement from the roof surface at the drain to the highest 
point of the roof surface served by the drain, ignoring a local depression 
immediately adjacent to the drain. 



(9) Scupper openings shall be not less than 4 inches (102 
mm) high and have a width equal to the circumference 
of the roof drain required for the area served, sized in 
accordance with Table 1 101.1 1 . 

(10) Flashings shal l extend above the top of the scuppers. 

(1 1) At a wall or parapet, 45 degree (0.79 rad) cants shall be 
installed. 



194 



2013 CALIFORNIA PLUMBING CODE 



STORM DRAINAGE 



(12) Separate storm and sanitary drainage systems shall be 
provided within the building. 

(13) Calculations for the roof drainage system shall be 
submitted along with the plans to the Authority Having 
Jurisdiction for approval. 

1108.2 Setback Roofs. Drains on setback roofs shall be 
permitted to be connected to the control led-flow drainage 
systems provided: 

( 1 ) The setback is designed for storing water, or 

(2) The square footage of the setback drainage area is 
converted as outlined in Section 1108.0 to gpm, and 
the storm-water pipe sizes in the controlled-flow 
system are based on the sum of the loads. 

(3) The branch from each of the roof drains that are not 
provided with controlled flow shall be sized in accor- 
dance with Table 1101.11. 



1109.2.2 Air Test. The air test shall be made by 
attaching an air compressor testing apparatus to a suit- 
able opening after closing other inlets and outlets to the 
system, forcing air into the system until there is a 
uniform gauge pressure of 5 pounds-force per square 
inch (psi) (34 kPa) or sufficient pressure to balance a 
column of mercury 10 inches (34 kPa) in height. This 
pressure shall be held without introduction of addi- 
tional air for a period of not less than 15 minutes. 

1109.2.3 Exceptions. Where circumstances exist that 
make air and water tests described in Section 1 109.2.1 
and Section 1109.2.2 impractical, see Section 
103.5.6.3. 



1109.0 Testing. 

1109.1 Testing Required. New building storm drainage 
systems and parts of existing systems that have been 
altered, extended, or repaired shall be tested in accordance 
with Section 1109.2.1 or Section 1109.2.2 to disclose leaks 
and defects. 

1109.2 Methods of Testing Storm Drainage Systems. 
Except for outside leaders and perforated or open-jointed 
drain tile, the piping of storm drain systems shall be tested 
upon completion of the rough piping installation by water 
or air, except that plastic pipe shall not be tested with air, 
and proved tight. The Authority Having Jurisdiction shall 
be permitted to require the removal of cleanout plugs to 
ascertain whether the pressure has reached parts of the 
system. One of the following test methods shall be used in 
accordance with Section 1109.2.1 through Section 
1 109.2.3. 

1109.2.1 Water Test. After piping has been installed, 
the water test shall be applied to the drainage system, 
either to the entire system or to sections. Where the test 
is applied to the entire system, all openings in the 
piping shall be tightly closed except for the highest 
opening, and the system shall be filled with water to 
the point of overflow. Where the system is tested in 
sections, each opening shall be tightly plugged except 
for the highest opening of the section under test, and 
each section shall be filled with water, but no section 
shall be tested with less than a 10 foot (3048 mm) head 
of water. In testing successive sections, not less than 
the upper 10 feet (3048 ram) of the next preceding 
section shall be tested so that no joint of pipe in the 
building except the uppermost 10 feet (3048 mm) of a 
roof drainage system, which shall be filled with water 
to the flood level of the uppermost roof drain, shall 
have been submitted to a test of less than 10 foot (3048 
mm) head of water. The water shall be kept in the 
system or in the portion under test for not less than 15 
minutes before inspection starts; the system shall men 
be tight. 



2013 CALIFORNIA PLUMBING CODE 



195 



STORM DRAINAGE 



SIZE OF PIPE 



SIZE OF PIPE 



SIZE OF PIPE 



FLOW 
(Ve inch per foot 
slope) 



TABLE 1 101 .7 
SIZING OF HORIZONTAL RAINWATER PIPING 1 ' 2 

MAXIMUM ALLOWABLE HORIZONTAL PROJECTED ROOF AREAS 
AT VARIOUS RAINFALL RATES 
(square feet) 



inrhoc 
II iLri ie» 


gpm 


1 (in/h) 


2 (in/h) 


3 (in/h) 


4 (in/h) 


5 (in/h) 


6 (in/h) 


3 


34 


3288 


1644 


1 096 


822 


657 


548 


4 ; 


78 


7520 


3760 


2506 


1880 


1504 


1253 


5 


139 


| 13 360 


6680 


4453 


3340 


2672 


2227 


6 ! 


222 


21400 


10 700 


7133 


5350 


4280 


3566 


8 i 


478 


46 000 


23 000 


15 330 


1 1 500 


9200 


7670 


10 


860 


82 800 


41 400 


27 600 


20 700 


16 580 


13 800 


12 


1384 


133 200 


66 600 


44 400 


33 300 


26 650 


22 200 


1 5 


2473 


238 000 


1 1 9 000 


79 333 


59 500 


47 600 


39 650 



FLOW 
( 1 /4 inch per foot 



MAXIMUM ALLOWABLE HORIZONTAL PROJECTED ROOF AREAS 
AT VARIOUS RAINFALL RATES 



FLOW 
( 1 /?_ inch per foot 
slope) 



MAXIMUM ALLOWABLE HORIZONTAL PROJECTED ROOF AREAS 
AT VARIOUS RAINFALL RATES 
(square feet) 





slope) 






(square feet) 






inches 


gpm 


1 (in/h) 


2 (in/h) 


3 (In/h) 


4 (in/h) 


5 (in/h) 


6 (in/h) 




48 


4640 


2320 


1 546 


1 160 


928 


773 


4 


110 


10 600 


5300 


3533 


2650 


2120 


1 766 


5 


196 


18 880 


9440 


6293 


4720 


3776 


3146 


6 


314 


30 200 


15 100 


10 066 


7550 


6040 


5033 


8 


677 


65 200 


32 600 


21 733 


16 300 


1 3 040 


10 866 


10 


1214 


116 800 


58 400 


38 950 


29 200 


23 350 


19 450 


12 


1953 


188 000 


94 000 


62 600 


47 000 


37 600 


31 350 


15 


349.1 


336 000 


1.68 000 


1 12 000 


84 000 


67 250 


56 000 



inches 


gpm 


1 (in/h) 


2 (in/h) 


3 (in/h) 


4 (in/h) 


5 (in/h) 


6 (in/h) 


3 


68 


6576 


3288 


2192 


1644 


1310 


1096 


4 


156 


1 5 040 


7520 


5010 


3760 


3010 


2500 


5 


278 


26 720 


13 360 


8900 


6680 


5320 


4450 


6 


445 


42 800 


21 400 


14 267 


10 700 


8580 


7140 


8 


956 


92 000 


46 000 


30 650 


23 000 


18 400 


1 5 320 


10 


1721 


1 65 600 


82 800 


55 200 


41 400 


33 150 


27 600 


12 


2768 


266 400 


133 200 


88 800 


66 600 


53 200 


44 400 


15 


4946 


476 000 


238 000 


158 700 


1 1 9 000 


95 200 


79 300 



For SI units: I inch = 25 mm, 1 gallon per minute = 0.06 L/s, % inch per foot = .10.4 iiini/m. 1 inch per hour = 25.4 mm/h, 1. square foot = 0.0929 m 
Notes: 

1 The sizing data for horizontal piping are 
" For rainfall rates other than those listed, 
desired rainfall rate. 



based on the pipes flowing full. 

determine the allowable roof area by dividing the area given in the 1 inch per hour (25.4 mm/h) column by the 



196 



2013 CALIFORNIA PLUMBING CODE 



STORM DRAINAGE 



TABLE 1101.11 

SIZING ROOF DRAINS, LEADERS, AND VERTICAL RAINWATER PIPING 2 ' 3 



SIZE OF 
DRAIN, 
LEADER, 
OR PIPE 


FLOW 








MAXIMUM ALLOWABLE HORIZONTAL PROJECTED ROOF AREAS 
AT VARIOUS RAINFALL RATES 
(square feet) 








inches 


gpm 1 


1 (in/h) 


2 (in/h) 


3 (in/h) 


I 4 (in/h) 


5 (in/h) 


6 (in/h) 


7 (in/h) 


8 (in/h) 


9 (in/h) 


10 (in/h) 


11 (in/h) 


12 (in/h) 


2 


30 


2880 


1440 


960 


720 


575 


480 


410 


360 


320 


290 


260 


240 


i 
j 


92 


8800 


440(1 


2930 


2200 


1 760 


1470 


1260 


1 100 


980 


880 


800 


730 


4 


192 


18 400 


9200 


6130 


4600 


3680 


3070 


2630 


2300 


2045 


1 840 


1 675 


I 530 


5 


360 


34 600 


17 300 


1 1 530 


; 8650 


6920 


5765 


4945 


4325 


3845 


3460 


3 1 45 


2880 


6 


563 


54 ()()() 


27 000 


1 7 995 


13 500 


10 800 


9000 


7715 


6750 


6000 j 


5400 


49 1 


4500 


8 


1208 


1 1 6 000 


58 000 


38 660 


29 000 


23 200 


19 315 


16 570 


14 500 


12 890 ; 


1 1 600 


10 545 


9600 



For SI units: I inch = 25 mm, 1 gallon per minute = 0.06 L/s. 1 inch per hour - 25.4 mm/h, 1 square foot = 0.0929 nr 
Notes: 

1 Maximum discharge capacity, gpm (L/s) with approximately l >4 inch (44 mm) head of water at the drain. 

2 For rainfall rates other than those listed, determine the allowable roof area by dividing the area given in the 1 inch per hour (25.4 mm/h) column by the 
desired rainfall rate. 

J Vertical piping shall be round, square, or rectangular. Square pipe shall be sized to enclose its equivalent roundpipe. Rectangular pipe shall have not less 
than the same cross-sectional area as its equivalent round pipe, except that the ratio of its side dimensions shall not exceed 3 to 1 . 



2013 CALIFORNIA PLUMBING CODE 



197 



STORM DRAINAGE 



TABLE 1106.3 
SIZE OF GUTTERS 



DIAMETER OF GUTTER 
(V16 inch per foot slope) 



DIAMETER OF GUTTER 



MAXIMUM RAINFALL RATES BASED ON ROOF AREA 
(square feet) 



MAXIMUM RAINFALL RATES BASED ON ROOF AREA 



inches 


2 (in/h) 


3 (in/h) 


4 (in/h) 


5 (in/h) 


6 (in/h) 


3 


340 


226 


170 


136 


113 


4 


720 


480 


360 


288 


240 


5 


1250 


834 


625 


500 


416 


6 


1 920 


1280 


960 


768 


640 


7 


2760 


1840 


1380 


1 1 00 


918 


8 


3980 


2655 


1 990 


1 590 


1325 


I0 


7200 


4800 


3600 


2880 


2400 



(Va inch per foot slope) 






(square feet) 






inches 


2 (in/h) 


3 (in/h) 


4 (in/h) 


5 (in/h) 


6 (in/h) 


3 


480 


320 


240 


192 


160 


4 


1020 


681 


510 


408 


340 


5 


1 760 


1 172 


880 


704 


587 


6 


2720 


1815 


1360 


1 085 


905 


7 


3900 


2600 


1 950 


1560 


1300 


8 


5600 


3740 


2800 


2240 


1870 


10 


1 200 


6800 


5 1 00 


4080 


3400 














DIAMETER OF GUTTER 
( 1 /4 inch per foot slope) 




MAXIMUM RAINFALL RATES BASED ON ROOF AREA 
(square feet) 




inches 


2 (in/h) 


3 (in/h) 


4 (in/h) 


5 (in/h) 


6 (in/h) 


3 


680 


454 


340 


272 


226 


4 


1440 


960 


720 


576 


480 


5 


2500 


1 668 


1 250 


1 000 


834 


6 


3840 


2560 


1 920 


1536 


1280 


7 


5520 


3680 


2760 


2205 


1840 


8 


7960 


5310 


3980 


3 1 80 


2655 


10 


14 400 


9600 


7200 


5750 


4800 














DIAMETER OF GUTTER 
( 1 /2 inch per foot slope) 


MAXIMUM RAINFALL RATES BASED ON ROOF AREA 
(square feet) 


inches 


2 (in/h) 


3 (in/h) 


4 (in/h) 


5 (in/h) 


6 (in/h) 


3 


960 


640 


480 


384 


320 


4 


2040 


1360 


1020 


81 6 


680 


5 


3540 


2360 


1770 


1415 


1180 


6 


5540 


3695 


2770 


2220 


1 850 


7 


7800 


5200 


3900 


3120 


2600 


8 


1 1 200 


7460 


5600 


4480 


3730 


10 


20 000 


13 330 


1 000 


8000 


6660 


For SI units: 1 inch = 25 mm, '/i6 inch per foot = 5.2 mm/m, 1 inch per hour = 25.4 imn/h, 1 square foot = 0.0929 m 2 



198 



2013 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 12 - FUEL GAS PIPING 
(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building application.) 



Adopting Agency 



Adopt Entire Chapter 



Adopt Entire Chapter as amended 
(amended sections listed below) 

Adopt only those sections that are 
| listed below 

| Chapter/Section 

i 1210.18 



\ BSC i SFM 

X 



HCD DSA OSHPD 

1 2 1-AC AC SS SS/CCj 12 3 4 

X ■ X X : X ! X ! X : X X X 



BSCC DPH 



AGR DWR CA | SL SLC j 



2013 CALIFORNIA PLUMBING CODE 



199 



2013 CALIFORNIA PLUMBING CODE 



CHAPTER 12 

FUEL GAS PIPING 



1201.0 Scope of Gas Piping. 

1201.1 Coverage of Piping System. Coverage of piping sys- 
1 terns shall extend from the point of delivery to the appliance 
J connections. For other than undiluted liquefied petroleum gas 

systems, the point of delivery shall be the outlet of the serv- 
ice meter assembly or the outlet of the service regulator or 
service shutoff valve where no meter is provided. For undi- 
luted liquefied petroleum gas systems, the point of delivery 
shall be considered the outlet of the final pressure regulator, 
exclusive of the line gas regulators where no meter is in- 
stalled. Where a meter is installed, the point of delivery shall 
be the outlet of the meter. [NFPA 54-12:1 .1.1.1 ( A)] 

1201.2 Piping System Requirements. Piping systems re- 
quirements shall include design, materials, components, fab- 
rications, assembly, installation, testing, inspection, operation, 
and maintenance. [NFPA 54: 1.1.1.1 (C)] 

1201.3 Application. This code shall not apply to the follow- 
ing (reference standards for some of which appear in Chap- 
ter 14): 

1 (1) Portable LP-Gas appliances that are not connected to a 
fixed fuel piping system. 

(2) Installation of appliances such as brooders, dehydrators, 
dryers, and irrigation equipment used for agricultural 
purposes. 

(3) Raw material (feedstock) applications, except for piping 
to special atmosphere generators. 

(4) Oxygen-fuel gas cutting and welding systems. 

(5) Industrial gas applications using gases such as acetylene 
and acetylenic compounds, hydrogen, ammonia, carbon 
monoxide, oxygen, and nitrogen. 

(6) Petroleum refineries, pipeline compressor or pumping 
stations, loading terminals, compounding plants, refin- 
ery tank farms, and natural gas processing plants. 

(7) Large integrated chemical plants or portions of such 
plants where flammable or combustible liquids or gases 
are produced by chemical reactions or used in chemical 
reactions. 

(8) LP-Gas installations at utility gas plants. 

(9) Liquefied natural gas (LNG) installations. 

(10) Fuel gas piping in electric utility power plants. 

(11) Proprietary items of equipment, apparatus, or instru- 
ments such as gas-generating sets, compressors, and 
calorimeters. 

(1 2) LP-Gas appliances for vaporization, gas mixing, and gas 
manufacturing. 

(13) LP-Gas piping for buildings under construction or reno- 
vations that are not to become part of the permanent 
building piping system — that is, temporary fixed piping 
for building heat. 

(14) Installation of LP-Gas systems for railroad switch heating. 



(1 5) Installation of LP-Gas and compressed natural gas sys- 
tems on vehicles. 

(16) Gas piping, meters, gas-pressure regulators, and other 
appurtenances used by the serving gas supplier in distri- 
bution of gas, other than undiluted LP-Gas. [NFPA 54- 
12:1.1.1.2] 

1202.0 General. 

1202.1 Installation. The regulations of this chapter shall gov- 
ern the installation of fuel gas pipi ng in or in connection with 
a building, structure or within the property lines of premises 
up to 5 pounds-force per square inch (34 kPa), other than 
service pipe. Fuel oil piping systems shall be installed in ac- 
cordance with NFPA 3 1 . 

1203.0 Inspection. 

1203.1 I nspection Notification. U pon completion of the in- 
stallation, alteration, or repair of gas piping, and prior to the 
use thereof, the Authority Having jurisdiction shall be noti- 
fied that such gas piping is ready for inspection. 

1203.2 Excavation. Excavations required lor the installation 
of underground piping shall be kept open until such time as 
the piping has been inspected and approved. Where such pip- 
ing is covered or concealed before such approval, it shall be 
exposed upon the direction of the Authority Having Jurisdic- 
tion. 

1203.3 Type of Inspections. The Authority Having Jurisdic- 
tion shall make the following inspections and either shall ap- 
prove that portion of the work as completed or shall notify 
the permit holder wherein the same fails to be in accordance 
with this code. 

1203.3.1 Rough Piping Inspection. This inspection 
shall be made after gas piping authorized by the permit 
has been installed and before such piping has been cov- 
ered or concealed or fixture or appliance has been at- 
tached thereto. Tliis inspection shall include a 
determination that the gas piping size, material, and in- 
stallation meet the requirements of this code. 

1203.3.2 Final Piping Inspection. This inspection shall 
be made after piping authorized by the permit has been 
installed and after portions thereof that are to be covered 
or concealed are so concealed and before fixture, appli- 
ance, or shutoff valve has been attached thereto. This in- 
spection shall comply with Section 1213.1. Test gauges 
used in conducting tests shall be in accordance with Sec- 
tion 318.0. 

1203.4 Inspection Waived. In cases where the work author- 
ized by the permit consists of a minor installation of addi- 
tional piping to piping already connected to a gas meter, the 
foregoing inspections shall be permitted to be waived at the 
discretion of the Authority Having Jurisdiction. In this event, 
the Authority Having Jurisdiction shall make such inspection 



2013 CALIFORNIA PLUMBING CODE 



201 



FUEL GAS PIPING 



as deemed advisable in order to be assured that the work has 
been performed i n accordance with the intent of this code. 

1.204.0 Certificate of Inspection. 

1204.1 Issuance. Where upon final piping inspection, the in- 
stallation, is found to be in accordance with the provisions of 
this code, a certificate of inspection shall be permitted to be 
issued by the Authority Having Jurisdiction. 

1204.2 Gas Supplier. A copy of the certificate of such final 
piping inspection shall be issued to the serving gas supplier 
supplying gas to the premises. 

1204.3 Unlawful. It shall be unlawful for a serving gas sup- 
plier, or person furnishing gas, to turn on or cause to be turned 
on, a fuel gas or a gas meter or meters, until such certificate 
of final inspection, as herein provided, has been issued. 

1205.0 Authority to Render Gas Service. 

1205.1 Authorized Personnel. It shall be unlawful for a per- 
son, firm, or corporation, excepting an authorized agent or 
employee of a person, firm, or corporation engaged in the 
business of furnishing or supplying gas and whose service 
pipes supply or connect with the particular premises, to turn 
on or reconnect gas service in or on a premises where and 
when gas service is, at the time, not being rendered. 

1205.2 Outlets. It shall be unlawful to turn on or connect 
| gas in or on the premises unless outlets are securely con- 
nected to gas appliances or capped or plugged with screw 
joint fittings. 

1 206.0 Authority to Disconnect. 

1206.1 Disconnection. The Authority Having jurisdiction or 
the serving gas supplier is hereby authorized to disconnect 
gas piping or appliance or both that shall be found not to be 
in accordance with the requirements of this code or that are 
found defective and in such condition as to endanger life or 
property. 

1206.2 Notice. Where such disconnection has been made, a 
notice shall be attached to such gas piping or appliance or 
both that shall state the same has been disconnected, together 
with the reasons thereof. 

1206.3 Capped Outlets. It shall be unlawful to remove or 
disconnect gas piping or gas appliance without capping or 
plugging with a screw joi nt fitting, the outlet from which said 
pipe or appliance was removed. Outlets to which gas appli- 
ances are not connected shall be left capped, gastight on a 
piping system that has been installed, altered, or repaired. 

Exception: Where an approved listed quick-disconnect de- 
vice is used. 

1207.0 Temporary Use of Gas. 

1207.1 General. Where temporary use of gas is desired and 
the Authority Having Jurisdiction deems the use necessary, a 
permit shall be permitted to be issued for such use for a pe- 
riod of time not to exceed that designated by the Authority 
Having Jurisdiction, provided that such gas piping system 



otherwise is in accordance with the requirements of th is code 
regarding material, sizing, and safety. 

1208.0 Gas Piping System Design, Materials, and Com- 
ponents. 

1208.1 Installation of Piping System. Where required by the 
Authority Having Jurisdiction, a piping sketch or plan shall be 
prepared before proceeding with the installation. This plan 
shall show the proposed location of piping, the size of differ- 
ent branches, the various load demands, and the location of 
the point of delivery. [NFPA 54:5.1.1] 

1208.1.1 Addition to Existing System. Where addi- 
tional appliances are being connected to a gas piping sys- 1 
tern, the existing piping shall be checked to determine 
whether it has adequate capacity. Where inadequate, the | 
existing system shall be enlarged as required, or separate 
gas piping of approved capacity shall be provided. 
[NFPA 54:5.1.2] 

1208.2 Provision for Location of Point of Delivery. The lo- 
cation of the point of delivery shall be acceptable to the serv- 
ing gas supplier. [NFPA 54:5.2] 

1208.3 Interconnections Between Gas Piping Systems. 

1208.3.1 Interconnections Supplying Separate Users. 
Where two or more meters, or two or more service reg- 
ulators where meters are not provided, are located on the 
same premises and supply separate users, the gas piping 
systems shall not be interconnected on the outlet side of 
the meters or service regulators. [NFPA 54:5.3.1] 

1208.3.2 Interconnections for Standby Fuels. Where a 
supplementary gas for standby use is connected down- 
stream from a meter or a service regu lator where a meter 
is not provided, a device to prevent backflow shall be in- 
stalled. A three-way valve installed to admit the standby 
supply, and at the same time shut off the regular supply, 
shall be permitted to be used for this purpose. [NFPA 
54:5.3.2] 

1208.4 Sizing of Gas Piping Systems. Gas piping systems 
shall be of such size and so installed as to provide a supply of 
gas to meet the maximum demand and supply gas to each ap- 
pliance inlet at not less than the minimum supply pressure re- 
quired by the appliance. [NFPA 54:5.4.1] 

1208.4.1 Maximum Gas Demand. The volumetric flow 
rate of gas to be provided (in cubic feet per hour) shall be 
calculated using the manufacturer's input ratings of the 
appliance served, adjusted for altitude. Where the input 
rating is not indicated, the gas supplier, appliance manu- 
facturer, or a qualified agency shall be contacted or the 
rating from Table 1208.4.1 shall be used for estimating 
the volumetric flow rate of gas to be suppl ied. | 

The total connected hourly load shall be used as the 
basis for piping sizing, assuming the appliances are op- 
erating at full capacity simultaneously. 

Exception: Sizing shall be permitted to be based upon 
established load diversity factors. [NFPA 54-12:5.4.2] 

1208.4.2 Sizing Methods. Gas piping shall be sized in 
accordance with one of the following: 



202 



2013 CALIFORNIA PLUMBING CODE 



FUEL GAS PIPING 



TABLE 1208.4.1 
APPROXIMATE GAS INPUT FOR 
TYPICAL APPLIANCES 
[NFPA 54: TABLE 5.4.2.1] 



APPLIANCE 

Space Heating Units 
Warm air furnace 

Single family 

Mil lti family, per unit 
Hydremic boiler 

Single family 

Mu lti family, per unit 

Space and Water Heating Units 
Hydremic boiler 

Single family 

Mul ti family, per unit 
Water Heating Appliances 

Water heater, automatic storage 
30 to 40 gallon tank 

Water heater, automatic storage 
50 gallon tank 

Water heater, automatic instantaneous 

Capacity at 2 gallons per minute 

Capacity at 4 gallons per minute 

Capacity at 6 gallons per minute 

Water heater, domestic, circulating or 
; side-arm 



INPUT 
(Btu/h approx.) 



100 000 
60 000 

100 000 
60 000 



120 000 
75 000 



35 000 
50 000 

142 800 
285 000 
428 400 

35 000 



Cooking Appliances 

Range, freestanding, domestic 65 000 

Built-in oven or broiler unit, domestic 25 000 

Built-in top unit, domestic 40 000 

Other Appliances 

Refrigerator 3000 

Clothes dryer. Type 1 (domestic) 35 000 

Gas fireplace direct vent 40 000 

Gas log 80 000 

Barbecue 40 000 

| Gaslight i 2500 

I | 

For SI units: 1 000 British thermal units per hour - 0.293 kW 

( 1 ) Pipe sizing tables or sizing equations in this chapter. 

(2) Other approved engineering methods acceptable to 
the Authority Having Jurisdiction. 

(3) Sizing tables included in a listed piping system man- 
] ufacturerVs instructions. [NFPA 54:5.4.3] 

1208.4,3 Allowable Pressure Drop. The design pressure 
loss in a piping system under maximum probable flow 
conditions, from the point of delivery to the inlet con- 
nection of the appliance, shall be such that the supply 



pressure at the appliance is greater than or equal to the 
minimum pressure required by the appliance. [NFPA 
54:5.4.4] 

1208.5 Acceptable Piping Materials and Joining Methods. 
Materials used for piping systems shall be in accordance with 
the requirements of this chapter or shall be acceptable to the 
Authority Having jurisdiction. [NFPA 54:5.6. 1.1] 

1208.5.1 Materials, Pipe, fittings, valves, or other ma- 
terials shall not be used again unless they are free of for- 
eign materials and have been ascertained to be approved | 
for the service intended. [NFPA 54:5.6. 1 .2] 

1208.5.1.1 Other Materials. Material not covered 
by the standards specifications listed herein shall be 
investigated and tested to determine that it is safe for S 
the proposed service and, in addition, shall be rec- 
ommended for that service by the manufacturer and 
shall be acceptable to the Authority Having Juris- 
diction. [NFPA 54:5.6.1.3] 

1208.5.2 Metallic Pipe. 

1208.5.2.1 Cast-Iron. Cast-iron pipe shall not be 
used. [NFPA 54:5.6.2. 1 ] 

1208.5.2.2 Steel and Wrought-! ron. Steel and 
wrought-iron pipe shall be not less than standard 
weight (Schedule 40) and shall comply with one of 
the following standards: 

(1) ASMEB36.10 

(2) ASTM A 53 

(3) ASTM A 1 06 [NFPA 54:5.6.2.2] 

1208.5.2.3 Copper and Brass. Copper and brass 
pipe shall not be used where the gas contains more 
than an average of 0.3 grains of hydrogen sul fide per 
100 standard cubic feet (scf) of gas (0.7 mg/100 L). 
[NFPA 54:5.6.2.3] 

Threaded copper, brass, or aluminum alloy pipe 
shall not be used with gases corrosive to such mate- 
rial. [NFPA 54:5.6.2.4] 

1208.5.2.4 Aluminum Alloy. Aluminum alloy pipe 
shall comply with ASTM B 241 (except that the use 
of alloy 5456 is prohibited) and shall be marked at 
each end of each length indicating compliance. Alu- 
minum alloy pipe shall be coated to protect against 
external corrosion where it is in contact with ma- 
sonry, plaster, insulation or is subject to repeated 
wettings by such liquids as water, detergents, or 
sewage. [NFPA 54:5.6.2.5] 

Aluminum alloy pipe shall not be used in exte- 
rior locations or underground. [NFPA 54:5.6.2.6] 

1208.5.3 Metallic Tubing. Seamless copper, aluminum 
alloy, or steel tubing shall not be used with gases corro- 
sive to such material. [NFPA 54:5.6.3] 

1208.5.3.1 Steel. Steel tubing shall comply with 
ASTM A 254. [NFPA 54:5.6.3. 1 ] 

1.208.5.3.2 Copper and Brass. Copper and brass 
tubing shall not be used where the gas contains more 



2013 CALIFORNIA PLUMBING CODE 



203 



FUEL GAS PIPING 



than an average of 0.3 grains of hydrogen sulfide per 
100 sc-f of gas (0.7 mg/100 L). Copper tubing shall 
comply with standard Type K or L of ASTM B 88 or 
AST.M B 280. [NT PA 54:5.6.3.2] 

1208.5.3.3 Aluminum Alloy. Aluminum alloy tub- 
ing shall comply with ASTM B 21 or ASTM B 241 . 
Aluminum alloy tubing shall be coated to protect 
against external corrosion where it is in contact with 
masonry, plaster, insulation, or is subject to repeated 
wettings by such liquids as water, detergent, or 
sewage. Aluminum alloy tubing shall not be used in 
exterior locations or underground. [NFPA 54:5.6.3.3] 

1208.5.3.4 Corrugated Stainless Steel. Corrugated 
stainless steel tubing shall be tested and listed in ac- 
cordance with the construction, installation, and per- 
formance requirements of CSA LC-1. [NFPA 
54:5.6.3.4] 

| 1208.5.4 Plastic Pipe, Tubing, and Fittings. Polyethyl- 
i ene plastic pipe, tubing, and fittings used to supply fuel 
gas shall be in accordance with ASTM D 2513. Pipe to 
be used shall be marked "gas" and "ASTM D 251 3." 
[NFPA 54-12:5.6.4.1.1] 

i 1 .208.5.4.1 Regulator Vent Piping. Plastic pipe and 

fittings used to connect regulator vents to remote 
vent terminations shall be PVC in accordance with 
UL 651. PVC vent piping shall not be installed in- 
doors. [NFPA 54- 12:5.6.4.2] 

1208.5.4.2 Anodeless Risers. Anodeless risers shall 
| comply with Section 1208.5.4.2(A) through Section 

I 1208.5.4.2(C). [NFPA 54:5.6.4.3] 

1208.5.4.2(A) Factory-Assembled Anodeless 
Risers. Factory-assembled anodeless risers shall 
be recommended by the manufacturer for the gas 
used and shall be leak-tested by the manufacturer 
in accordance with written procedures. [NFPA 
54:5.6.4.3(1)] 

1208.5.4.2(E) Service Head Adapters and 
Field-Assembled Anodeless Risers. Service 
head adapters and field-assembled anodeless 
risers incorporating service head adapters shall 
be recommended by the manufacturer for the 
I gas used and shall be design -certified to be in 

accordance w ith the requirements of Category 1 
[ of ASTM D 25 1 3. The manufacturer shall pro- 

I vide the user qualified installation instructions. 

[NFPA 54:5.6.4.3(2)] 

1208.5.4.2(C) Undiluted Liquefied Petroleum 
Gas Piping. The use of plastic pipe, tubing, and 
fittings in undiluted liquefied petroleum gas 
piping systems shall be in accordance with 
NFPA 58. [NFPA 54:5.6.4.3(3)] 

1208.5.5 Workman ship and Defects. Gas pipe, tubing, 
and fittings shall be clear and free from cutting burrs and 
defects in structure or threading, and shall be thoroughly 
brushed and chip and scale blown. Defects in pipe, tub- 
ing, and fittings shall not be repaired. Defective pipe, tub- 
ing, and fittings shall be replaced. [NFPA 54:5.6.5] 



1208.5.6 Protective Coating. Where in contact with ma- 
terial or atmosphere exerting a corrosive action, metallic 
piping and fittings coated with a corrosion-resistant ma- 
terial shall be used. External or internal coatings or lin- 
ings used on piping or components shall not be 
considered as adding strength. [NFPA 54:5.6.6] 

1208.5.7 Metallic Pipe Threads. Metallic pipe and fit- 
ting threads shall be taper pipe threads and shall comply 
with ASME Bl.20.1. [NFPA 54:5.6.7.1] 

1208.5.7.1 Damaged Threads. Pipe with threads 
that are stripped, chipped, corroded, or otherwise 
damaged shall not be used. Where a weld opens dur- 
ing the operation of cutting or threading, that por- 
tion of the pipe shall not be used. [NFPA 54:5.6.7.2] 

1208.5.7.2 Number of Threads. Field threading of 
metallic pipe shall be in accordance with Table 
1208.5.7.2. [NFPA 54:5.6.7.3] 



TABLE 1208.5.7.2 
SPECIFICATIONS FOR THREADING METALLIC PIPE 
[NFPA 54: TABLE 5.6.7.3] 



IRON 
PIPE SIZE 
(inches) 


APPROXIMATE LENGTH OF 
THREADED PORTION 

(inches) 


APPROXIMATE NUM- I 
BER OF THREADS TO | 
BE CUT 


I A 


% 


lo " 


2 A 


} A 






y% 


10 


VA 


i ii 


V/i 


i ii 




i n | 


2',-': 


V/i 


12 




VA 




4 | \H 


13 



For ST units: 1 inch = 25.4 mm 



1208.5.7.3 Thread Joint Compounds. Thread joint 
compounds shall be resistant to the action of lique- 1 
fied petroleum gas or to other chemical constituents 
of the gases to be conducted through the piping. 
[NFPA 54-12:5.6.7.4] 

1208.5.8 Metallic Piping Joints and Fittings. The type 
of piping joint used shall be approved for the pressure- 1 
temperature conditions and shall be selected giving con- 
sideration to joint tightness and mechanical strength 
under the service conditions. The joint shall be able to 
sustain the maximum end force due to the internal pres- 
sure and additional forces due to temperature expansion 
or contraction, vibration, fatigue, or to the weight of the 
pipe and its contents. [NFPA 54:5.6.8] 

1208.5.8.1 Pipe Joints. Pipe joints shall be threaded, 
flanged, brazed, or welded. Where non ferrous pipe 
is brazed, the brazing materials shall have a melting 
point in excess of 1000°F (538°C). Brazing alloys 



204 



2013 CALIFORNIA PLUMBING CODE 



FUEL GAS PIPING 



shall not contain more than 0.05 percent phospho- 
rus. [NFPA 54:5.6.8.1] 

1208.5.8.2 Tubing Joints. Tubing joints shall either 
be made with approved gas tubing fittings, be brazed 
with a material having a melting point in excess of 
1000°F (538°C), or made by press-connect fittings 
in accordance with CSA LC-4. Brazing alloys shall 
not contain more than 0.05 percent phosphorus. 
[NFPA 54:5.6.8.2] 

1208.5.8.3 Flared Joints. Flared joints shall be used 
in systems constructed from nonferrous pipe and 
tubing where experience or tests have demonstrated 
that the joint is approved for the conditions and 
where provisions are made in the design to prevent 
separation of the joints. [NFPA 54:5.6.8.3] 

1208.5.8.4 Metallic Pipe Fittings (Including 
Valves, Strainers, Filters). Metallic pipe fittings 
shall comply with the following: 

(1) Threaded fittings in sizes exceeding 4 inches 
(1 00 mm) shall not be used unless acceptable to 
the Authority Having jurisdiction. 

(2) Fittings used with steel or wrought-iron pipe 
shall be steel, brass, bronze, malleable iron, or 
cast-iron. 

(3) Fittings used with copper or brass pipe shall be 
copper, brass, or bronze. 

(4) Fittings used with aluminum alloy pipe shall be 
of aluminum alloy. 

(5) Cast-iron fittings. 

(a) Flanges shall be permitted. 

(b) Bushings shall not be used. 

(c) Fittings shall not be used in systems con- 
taining flammable gas-air mixtures. 

(d) Fittings in sizes 4 inches (100 mm) and 
larger shall not be used indoors unless ap- 
proved by the Authority Having Jurisdic- 
tion. 

(e) Fittings in sizes 6 inches (150 mm) and 
larger shall not be used unless approved by 
the Authority Having Jurisdiction. 

(6) Aluminum alloy fitting threads shall not form 
the joint seal. 

(7) Zinc-aluminum alloy fittings shall not be used 
in systems containing flammable gas-air mix- 
tures. 

(8) Special fittings such as couplings; proprietary- 
type joints; saddle tees; gland-type compression 
fittings; and flared, flareless, or compression- 
type tubing fittings shall be: 

(a) Used within the fitting manufacturer's 
pre s s ure- te mperat u re recomm en d at io ns . 

(b) Used within the service conditions antici- 
pated with respect to vibration, fatigue, 
thermal expansion, or contraction. 



(c) Installed or braced to prevent separation of 
the joint by gas pressure or external physi- 
cal damage. 

(d) Acceptable to the Authority Having Juris- 
diction. [NFPA 54:5.6.8.4] 

1208.5.9 Plastic Piping, Joints, and Fittings. Plastic 
pipe, tubing, and fittings shall be installed in accordance 
with the manufacturer's installation instructions. Section 
1208.5.9.1 through Section 1208.5.9.4 shall be observed 
where making such joints. [NFPA 54:5.6.9] 

1208.5.9.1 Joint Design. The joint shall be designed 
and installed so that the longitudinal pullout resist- 
ance of the joint shall be equal to the tensile strength 
of the plastic piping material . [N FPA 54:5.6.9(1)] 

1208.5.9.2 Heat-Fusion Joint. Heat-fusion joints 
shall be made in accordance with AWS B2.4. Joints 
shall be made with the joining method recommended 
by the pipe manufacturer. Heat-fusion fittings shall 
be marked "AST'M D 25 13." [NFPA 54:5.6.9(2)] 

1208.5.9.3 Compression-Type Mechanical Joints. 
Where compression-type mechanical joints are used, 
the gasket material in the fitting shall be compatible 
with the plastic piping and with the gas distributed by 
the system. An internal tubular rigid stiffener shall be 
used in conjunction with the fitting. The stiffener shall 
be flush with the end of the pipe or tubing, shall extend 
not less than the outside end of the pipe or tubing, and 
shall extend not less than to the outside end of the 
compression fitting where installed. The stiffener shall 
be free of rough or sharp edges and shall not be a 
forced fit in the plastic. Split tubular stiffeners shall 
not be used. [NFPA 54:5.6.9(3)] 

1208.5.9.4 Liquefied Petroleum Gas Piping Sys- 
tems. Plastic piping joints and fittings for use in liq- 
uefied petroleum gas piping systems shall be in 
accordance with NFPA 58. [NFPA 54:5.6.9(4)] 

1208.5.10 Flanges. Flanges shall comply with AS ME 
B16.1, ASMEB 16.20, or MSS SP-6. The pressure-tem- 
perature ratings shall equal or exceed that required by the 
application. [NFPA 54:5.6. 10] 

1208.5.10.1 Flange Facings. Standard facings shall 
be permitted for use under this code. Where 1 50 psi 
(1034 kPa) steel flanges are bolted to Class 1 25 cast- 
iron flanges, the raised face on the steel flange shall 
be removed. [NFPA 54:5.6. 1 0. 1 ] 

1208.5.10.2 Lapped Flanges. Lapped flanges shall 
be used aboveground or in exposed locations acces- 
sible for inspection. [NFPA 54:5.6. 1 0.2] 

1208.5.11 Flange Gaskets. The material for gaskets shall 
be capable of withstanding the design temperature and 
pressure of the piping system and the chemical con- 
stituents of the gas being conducted without change to 
its chemical and physical properties. The effects of fire 
exposure to the joint shall be considered in choosing the 
material. [NFPA 54:5.6. 1 1] Flange gaskets shall comply I 
with the following requirements: I 



2013 CAUFORNSA PLUMBSNG CODE 



205 



FUEL GAS PIPING 



( 1 ) Acceptable materials include the following: 

(a) M eta 1 ( p la i n o r co r rugated) 

(b) Composition 

(c) Aluminum "O" rings and spiral-wound metal 

gaskets [NF.PA 54- 1 2:5.6 1 11 ] 

(2) Where a flanged joint is opened, the gasket shall be 
replaced. [NFPA 54:5.6. 1 1.2] 

(3) Full-face gaskets shall be used with bronze and cast- 
iron flanges. [NFPA 54:5.6. 1 1 .3] 

1208.6 Gas Meters. Gas meters shall be selected for the max- 
imum expected pressure and permissible pressure drop. 
[NFPA 54:5.7.1] 

1208.6.1 Location. Gas meters shall be located in venti- 
lated spaces readily accessible for examination, reading, 
replacement, or necessary maintenance. [NFPA 
54:5.7.2.1] 

1.208.6.1.1. Subject to Damage. Gas meters shall not 
be placed where they will be subjected to damage, 
such as adjacent to a driveway; under a fire escape; 
in public passages, halls, or coal bins; or where they 
will be subject to excessive corrosion or vibration. 
[NFPA 54:5.7.2.2] 

1208.6.1.2 Extreme Temperatures. Gas meters 
shall not be located where they will be subjected to 
extreme temperatures or sudden extreme changes in 
temperature. Meters shall not be located in areas 
where they are subjected to temperatures beyond 
those recommended by the manufacturer. [NFPA 
54:5.7.2.3] 

1208.6.2 Supports. Gas meters shall be supported or 
connected to rigid piping so as not to exert a strain on the 
meters. Where flexible connectors are used to connect a 
gas meter to downstream piping at mobile homes in mo- 
bile home parks, the meter shall be supported by a post 
or bracket placed in a firm footing or by other means pro- 
viding equivalent support. [NFPA 54:5.7.3] 

.1.208.6.3 Meter Protection. Meters shall be protected 
against overpressure, backpressure, and vacuum. [NFPA 
54-12:5.7.4] 

1208.6.4 Identification. Gas piping at multiple meter in- 
stallations shall be marked by a metal tag or other per- 
manent means attached by the installing agency, 
designating the building or the part of the building being 
supplied. [NFPA 54:5.7.5] 

.1208.7 Gas Pressure Regulators. A line gas pressure regu- 
lator shall be installed where the gas supply pressure exceeds 
that at which the appliance is designed to operate or varies 
beyond design pressure limits. [NFPA 54-12:5.8.1] 

1208.7.1 Overpressure Protection. Where the gas sup- 
ply design pressure in piping systems located indoors ex- 
ceeds 2 psi (14 kPa) and line pressure regulators are 
installed to reduce the supply pressure to 14 inches water 
column (3.5 kPa) or less, the following shall apply: 

(1) Regulators shall be provided with factory installed 
overpressure protection devices. 



(2) Overpressure protection devices shall limit the pres- 
sure downstream of the l ine pressure regulator to 2 
psi (14 kPa) in the event of failure of the line pres- 
sure regulator. [NFPA 54-12:5.8.3] 

1208.7.2 Listing. Line gas pressure regulators shall be 
listed in accordance with CSA Z21.80. [NFPA 54:5.8.2] 

1208.7.3 Location. The gas pressure regulator shall be 
accessible for servicing. [NFPA 54:5.8.3] 

1208.7.4 Regulator Protection. Pressure regulators shall 
be protected against physical damage. [NFPA 54:5.8.4] 

1208.7.5 Venting. 

.1208.7.5.1 Line Gas Pressure Regulators. Line 
gas pressure regulators shall be installed in accor- 
dance with the following requirements: 

( I ) An independent vent to the exterior of the build- 
ing, sized in accordance with the regulator man- 
ufacturer's instructions, shall be provided where 
the location of a regulator is such that a ruptured 
diaphragm will cause a hazard. Where more 
than one regulator is at a location, each regula- 
tor shal l have a separate vent to the outdoors, or | 
where approved by the Authority Having Juris- 
diction, the vent lines shall be permitted to be 
manifolded in accordance with accepted engi- 
neering practices to minimize backpressure in 
the event of diaphragm failure. Materials forf 
vent piping shall comply with Section 1208.5. 

Exception: A regulator and vent limiting means 
combination listed in accordance with CSA 
Z21.80 shall be permitted to be used without a 
vent to the outdoors. 

(2) The vent shall be designed to prevent the entry 
of water, insects, or other foreign materials that 
will cause blockage. 

(3) The regulator vent shall terminate not less than I 
3 feet (914 mm) from a source of ignition. 1 

(4) At locations where regulators will be sub- 
merged during floods, a special anti flood-type 
breather vent fitting shall be installed, or the 
vent line shall be extended above the height of 
the expected flood waters. 

(5) A regulator shall not be vented to the appliance 1 
flue or exhaust system. [NFPA 54:5.8.5.1] 

1.208.7.5.2 Venting of Gas Appliance Pressure 
Regulators. Venting of gas appliance pressure reg- 
ulators shall be in accordance with the following re- 
quirements: 

(1 ) Appliance pressure regulators requiring access | 
to the atmosphere for successful operation shall 
be equipped with vent piping leading outdoors 
or, where the regulator vent is an integral part of 
the appliance, into the combustion chamber ad- 
jacent to a continuous pilot, unless constructed 
or equipped with a vent-limiting means to limit 
the escape of gas from the vent opening in the 
event of diaphragm failure. 



206 



2013 CALIFORNIA PLUMBING CODE 



FUEL GAS PIPING 



(2) Vent limiting means shall be employed on listed 
appliance pressure regulators. 

(3) In the case of vents leading outdoors, means 
shall be employed to prevent water from enter- 
ing this piping and also to prevent blockage of 
vents by insects and foreign matter. 

(4) Under no circumstances shall a regulator be 
vented to the appliance flue or exhaust system. 

(5) In the case of vents entering the combustion 
chamber, the vent shall be located so the escap- 
ing gas will be readily ignited by the pilot and 
the heat liberated thereby will not adversely af- 
fect the normal operation of the safety shutoff 
system. The terminus of the vent shall be se- 
curely held in a fixed position relative to the 
pilot. For manufactured gas, the need for a 
flame arrester in the vent piping shall be deter- 
mined. 

(6) Vent lines from a gas appliance pressure regu- 
lator and bleed lines from a diaphragm-type 
valve shall not be connected to a common man- 
ifold terminating in a combustion chamber. Vent 
lines shall not terminate in positive-pressure- 
type combustion chambers. [NFPA 54:9.1.19] 

1208.7.5.3 Discharge of Vents. The discharge of 
vents shall be in accordance with the following re- 
qui rements: 

(1) The discharge stacks, vents, or outlet parts of 
pressure-rel ieving and pressure-limiting devices 
shall be located so that gas is safely discharged 
into the outdoors. 

(2) Discharge stacks or vents shall be designed to 
prevent the entry of water, insects, or other for- 
eign material that could cause blockage. The 
discharge stack or vent line shall be not less 
than the same size as the outlet of the pressure- 
relieving device. [NFPA 54:5.9.7] 

1208.7.6 Bypass Piping. Valved and regulated bypasses 
shall be permitted to be placed around gas line pressure 
regulators where continuity of service is imperative. 
[NFPA 54:5.8.6] 

1208.7.7 Identification. Line pressure regulators at mul- 
tiple regulator installations shall be marked by a metal 
tag or other permanent means designating the building 
or the part of the building being supplied. [NFPA 
54:5.8.7] 

1208.8 Backpressure Protection. Protective devices shall be 
installed as close to the appliance as practical where the design 
of the appliance con nected is such that air, oxygen, or standby 
gases are capable of being forced into the gas supply system. 
Gas and air combustion mixers incorporating double di- 
aphragm "zero" or "atmosphere" governors or regulators shall 
require no further protection unless connected directly to com- 
pressed air or oxygen at pressures of 5 psi (34 kPa) or more. 
[NFPA 54:5.10.1] 

1208.8.1 Protective Devices. Protective devices shall in- 
clude, but not be limited to the following: 



(1) Check valves. 

(2) Three-way valves (of the type that completely closes 
one side before starting to open the other side). 

(3) Reverse How indicators controlling positive shutoff 
valves. 

(4) Normally closed air-actuated positive shutoff pres- 
sure regulators. [NFPA 54:5. 10.2] 

1208.9 Low-Pressure Protection. A protective device shall 
be installed between the meter and the appliance or equip- 1 
ment where the operation of the appliance or equipment is [ 
such that it is capable of producing a vacuum or a dangerous 
reduction in gas pressure at the meter. Such protective devices | 
include, but are not limited to, mechanical, diaphragm-oper- 
ated, or electrically operated low-pressure shutoff valves. 
[NFPA 54-1 2:5. 11] 

1208.10 Shutoff Valves. Shutoff valves shall be approved 
and shall be selected giving consideration to pressure drop, 
service involved, emergency use, and reliability of operation. 
Shutoff valves of size 1 inch (25 mm) National Pipe Thread 
and smaller shall be listed. [NFPA 54:5. 12] 

1208.11 Expansion and Flexibility. Piping systems shall be 
designed to prevent failure from thermal expansion or con- 1 
traction. [NFPA 54-12:5.14.1] * I 

1208.11.1 Special Local Conditions. Where local con- 
ditions include earthquake, tornado, unstable ground, or 
flood hazards, special consideration shall be given to in- 
creased strength and flexibility of piping supports and 
connections. [NFPA 54:5. 1 4.2] 

1209.0 Excess Flow Valve. 

1209.1 General. Where automatic excess flow valves are in- J 
stalled, they shall be listed, sized, and installed in accordance 
with the manufacturer's installation instructions. |MFPA| 
54:5.13] 

1210.0 Gas Piping Installation. 

1.210.1. Piping Underground. Underground gas piping shall 
be installed with approved clearance from other underground | 
structures to avoid contact therewith, to allow maintenance, 
and to protect against damage from proximity to other struc- 
tures. In addition, underground plastic piping shall be in- 
stalled with approved clearance or shall be insulated from [ 
sources of heat so as to prevent the heat from impairing the 
serviceability of the pipe. [NFPA 54:7.1.1] 

1210.1.1 Cover Requirements. Underground piping sys- 
tems shall be installed with a cover not less than 18! 
inches (457 mm). Where external damage to the pipe is I 
not likely to result, the cover shall be not less than 12 
inches (305 mm). Where a cover not less than 1 2 inches 1 
(305 mm) cannot be provided, the pipe shall be installed | 
in conduit or bridged (shielded). [NFPA 54:7. 1 .2. 1 ] 

1210.1.2 Trenches. The trench shall be graded so that 
the pipe has a firm, substantially continuous bearing on 
the bottom of the trench. [NFPA 54:7. 1 .2.2] 

1.210.1.2.1. Backfilling. Where flooding of the 
trench is done to consolidate the backfill, care shall 



2013 CALIFORNIA PLUMBING CODE 



207 



FUEL GAS PIPING 



be exercised to see that the pipe is not floated from 
its firm bearing on the trench bottom. [NFPA 
54:7.1.2.3] 

12.1.0.1.3 Protection Against Corrosion, Gas piping in 
contact with earth or other material that is capabl e of cor- 
roding the piping shall be protected against corrosion in 
an approved manner. Where dissimilar metals are joined 
underground, an insulating coupling or fitting shall be 
used. Piping shall not be laid i n contact with cinders. Un- 
coated threaded or socket- welded joints shall not be used 
in piping in contact with soil or where internal or exter- 
nal crevice corrosion is known to occur. [NFPA 54:7.1.3] 

1210.1.4 Protection Against .Freezing. Where the for- 
mation of hydrates or ice is known to occur, piping shall 
be protected against freezing. [NFPA 54:7.1.4] 

1210.1.5 Piping Through Foundation Wall Under- 
ground piping installed through the outer foundation or 
basement wall of a building shall be encased in a pro- 
tective sleeve or protected by an approved device or 

| method. The space between the gas piping and the sleeve 
1 and between the sleeve and the wall shall be sealed to 
prevent entry of gas and water. [NFPA 54-12:7.1.5] 

.1210.1.6 Piping Underground Beneath Buildings. 
I Where gas piping is installed underground beneath build- 
I ings, the piping shall be either: 

(1) Encased in an approved conduit designed to with- 
stand the imposed loads and installed in accordance 
with Section 1210.1.6.1 or Section 1210.1.6.2. 

(2) A piping or encasement system listed for install ati on 
beneath buildings. [NFPA 54-12:7. 1.6] 

1210.1.6.1 Conduit with One End Terminating 
Outdoors. The conduit shall extend into a normally 
usable and accessible portion of the building and, at 
the point where the conduit terminates in the build- 
ing, the space between the conduit and the gas pip- 
ing shall be sealed to prevent the possible entrance 
of a gas leakage. Where the end sealing is of a type 
that will retain the full pressure of the pipe, the con- 
duit shall be designed for the same pressure as the 
pipe. The conduit shall extend not less than 4 inches 

1(102 mm) outside the building, be vented outdoors 
above finished ground level and be installed so as to 
prevent the entrance of water and insects. [NFPA 
54:7.1.6.1] 

1210.1.6.2 Conduit with Both Ends Terminating 
Indoors. Where the conduit originates and termi- 
nates within the same building, the conduit shall 
originate and terminate in an accessible portion of 
the building and shall not be sealed. [NFPA 
54:7.1.6.2] 

1210.1.7 Plastic Piping. Plastic piping shall be installed 
outdoors, underground only. 

Exceptions: 

1 (1 ) Plastic piping shall be permitted to terminate above- 
ground where an anode I ess ri ser i s used. 



(2) Plastic piping shall be permitted to terminate with a 
wall head adapter aboveground in buildings, in- 
cluding basements, where the plastic piping is in- 
serted in a piping material permitted for use in 
buildings. [NFPA 54-12:7.1.7.1] 

1210.1.7.1 Connections Between Metallic and 
Plastic Piping. Connections made between metal- 
lic and plastic piping shall be made with fittings that 
are in accordance with one of the following: 

(1) ASTM D 25 .13 

(2) ASTMF 1973 

(3) ASTM F 2509 [NFPA 54:7.1 .7.2] 

1210.1.7.2 Tracer Wire. An electrically continuous 
corrosion-resistant tracer wire (not less than AWG 
14) or tape shall be buried with the plastic pipe to 
facilitate locating. One end shall be brought above- 
ground at a building wall or riser. [NFPA 54:7.1.7.3] 

1210.2 Installation of Piping. Piping instal led aboveground 
shall be securely supported and located where it will be pro- 
tected from physical damage. Where passing through an ex- 
terior wall, the piping shall be protected against corrosion by 
coating or wrapping with an inert material approved for such 
applications. The piping shall be sealed around its circumfer- 
ence at the point of the exterior penetration to prevent the 
entry of water, insects, and rodents. Where piping is encased 
in a protective pipe sleeve, the annular spaces between the 
gas piping and the sleeve and between the sleeve and the wall 
opening shall be sealed. [NFPA 54-12:7.2.1] 

1210.2.1 Building Structure. The installation of gas pip- 
ing shall not cause structural stresses within building 
components to exceed allowable design limits. Approval 
shall be obtained before beams or joists are cut or 
notched. [NFPA 54:7.2.2] 

Permission shall be obtained from the Authority 
H a v i n g J u risdi cti o n . 

1210.2.2 Gas Piping to be Sloped. Piping for other than 
dry gas conditions shall be sloped not less than l A inch in 
15 feet (1.4 mm/m) to prevent traps. [NFPA 54:7.2.4] 

1210.2.2. X Ceiling Locations. Gas piping shall be 
permitted to be installed in accessible spaces be- 
tween a fixed ceiling and a dropped ceiling, whether 
or not such spaces are used as a plenum. Valves shall 
not be located in such spaces. 

Exception: Appliance shutoff valves required by 
this code shall be permitted to be installed in acces- 
sible spaces containing vented appliances. 

1210.2.3 Prohibited Locations. Gas piping inside a build- 
ing shall not be installed in or through a clothes chute, 
chimney or gas vent, dumbwaiter, elevator shaft, or air 
duct, other than combustion air ducts. [NFPA 54:7.2.5] 

Exception: Ducts used to provide ventilation air in ac- 
cordance with Section 506.0 or to above-ceiling spaces in 
accordance with Section 1 2 1 0.2.2. 1 . 



208 



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1210.2.4 Hangers, Supports, and Anchors. Piping shall 
be supported with metal pipe hooks, metal pipe straps, 
metal bands, metal brackets, metal hangers, or building 
structural components; approved for the size of piping; of 
adequate strength and quality; and located at intervals so 
as to prevent or damp out excessive vibration. Piping 
shall be anchored to prevent undue strains on connected 
appliances and equipment and shall not be supported by 
other piping. Pipe hangers and supports shall comply 
with the requirements of MSS SP-58. [NFPA 54:7.2.6. 1] 
1210.2.4.1 Spacing. Spacing of supports in gas pip- 
ing installations shall not exceed the distance shown 
in Table 1210.2.4.1. Spacing of supports for CSST 
shall be in accordance with the CSST manufac- 
turer's instructions. [NFPA 54:7.2.6.2] 

TABLE 1210.2.4.1 
SUPPORT OF PIPING 
[NFPA 54: TABLE 7.2.6.2] 



STEEL PIPE, 
NOMINAL SIZE 

OF PIPE 

(inches) 

Vi 

1 l A or larger 
(horizontal) 



SPACING OF 
SUPPORTS 
(feet) 



1 Va or larger 
(vertical) 



6 
10 

Every floor 
level 



NOMINAL SIZE \ 
OF TUBING 

SMOOTH-WALL 
(inches O.D.) 



vs or w a 

: or I 
(horizontal) 

1 or larger 
(vertical) 



SPACING OF 
SUPPORTS 
(feet) 



Every floor 
level 



For St units: 1 inch = 25 mm, J foot = 304.8 mm 



1210.2.4.2 Expansion and Contraction. Supports, 
hangers, and anchors shall be installed so as not to 
interfere with the free expansion and contraction of 
the piping between anchors. Parts of the supporting 
1 system shall be designed and installed so they are 

not disengaged by movement of the supported pip- 
ing. [NFPA 54:7.2.6.3] 
1210.2.5 Removal of Piping. Where piping containing 
gas is to be removed, the line shall be first disconnected 
from sources of gas and then thoroughly purged with air, 
water, or inert gas before cutting or welding is done. 
S [NFPA 54-12:7.2.6] 
1210.3 Concealed Piping In Buildings. Gas piping in con- 
cealed locations shall be installed in accordance with this sec- 
tion. [NFPA 54:7.3.1] 

1210.3.1. Connections. Where gas piping is to be con- 
cealed, connections shall be of the following type: 

(1) Pipe fittings such as elbows, tees, couplings, and 
right/left nipple/couplings. 

(2) Joining tubing by brazing (see Section 1208.5.8.2). 
[NFPA 54:7.3.2(2)] 

(3) Fittings listed for use in concealed spaces or that 
have been demonstrated to sustain, without leakage, 
forces due to temperature expansion or contraction, 
vibration, or fatigue based on their geographic loca- 
tion, application, or operation. [NFPA 54:7.3.2(3)] 



(4) Where necessary to insert fittings in gas pipe that 
has been installed in a concealed location, the pipe 
shall be reconnected by welding, flanges, or the use 
of a right/left nipple/coupl ing. ( 

1210.3.2 Piping in Partitions. Concealed gas piping 
shall not be located in solid partitions. [NFPA 54:7.3.3] 

1210.3.3 Tubing in Partitions. This provision shall not 
apply to tubing that pierces walls, floors, or partitions. 
Tubing installed vertically and horizontally inside hol- 
low walls or partitions without protection along its en- 
tire concealed length shall be in accordance with the S 
following requirements: I 

(1) A steel striker barrier not less than 0.0508 of an inch 
(1.3 mm) thick, or equivalent, shall be installed be- 
tween the tubing and the finished wall and extend 
not less than 4 inches (102 mm) beyond concealed 
penetrations of plates, firestops, wall studs, and sim- 1 
ilar construction features. i 

(2) The tubing shall be installed in single runs and shall 
not be rigidly secured. [NFPA 54:7.3.4] 

1210.3.4 Piping in Floors. In industrial occupancies, gas 
piping in solid floors such as concrete shall be laid in 
channels in the floor and covered to permit access to the 
piping with minimum damage to the building. Where 
piping in floor channels is exposed to excessive moisture 
or corrosive substances, the piping shall be protected in 
an approved manner. [NFPA 54:7.3.5.1] 

Exception: In other than industrial occupancies and 
where approved by the Authority Having Jurisdiction, 
gas piping embedded in concrete floor slabs constructed 
with portland cement shall be surrounded with not less 
than VA inches (38 mm) of concrete and shall not be in 
physical contact with other metallic structures such as re- 
inforcing rods or electrically neutral conductors. Piping, 
fittings, and risers shall be protected against corrosion in 
accordance with Section 1208.5.6. Piping shall not be 
embedded in concrete slabs containing quick-set addi- 
tives or cinder aggregate. [NFPA 54:7.3.5.2] 

1210.4 Piping in Vertical Chases. Where gas piping ex- 1 
ceeding 5 psi (34 kPa) is located within vertical chases in ac- 
cordance with Section 12 10. 5(2), the requirements of Section 
1210.4.1 through Section 1210.4.3 shall apply. [NFPA 54:7.4] 

1210.4.1 Pressure Reduction. Where pressure reduction i 
is required in branch connections in accordance with 
Section 1210.5, such reduction shall take place either in- 
side the chase or immediately adjacent to the outside wall 
of the chase. Regulator venting and downstream over- 
pressure protection shall comply with Section 1208.7.1 
and Section 1208.7.5. The regulator shall be accessible I 
for service and repair, and vented in accordance with one 
of the following: 

(1) Where the fuel gas is lighter than air, regulators 
equipped with a vent limiting means shall be per- 
mitted to be vented into the chase. Regulators not 
equipped with a vent limiting means shall be per- 
mitted to be vented either directly to the outdoors or 
to a point within the top 1 foot (305 mm) of the 
chase. 



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(2) Where the fuel gas is heavier than air, the regulator 
vent shall be vented directly to the outdoors. [NFPA 
54:7.4.1] 

1.210.4.2 Construction. Chase construction shall com- 
ply with local building codes with respect to fire resist- 
ance and protection of horizontal and vertical openings. 
[NFPA 54:7.4.2] 

1.2.10.4.3 Ventilation. A chase shall be ventilated to the 
outdoors and at the top. The openings shall have a mini- 
mum free area [in square inches (m 2 )] equal to the prod- 
uct of one-half of the maximum pressure in the piping 
[in psi (kPa)] times the largest nominal diameter of that 
piping [in inches (mm)], or the cross-sectional area of 
the chase, whichever is smaller. Where more than one 
fuel gas piping system is present, the free area for each 
system shall be calculated and the largest area used. 
[NFPA 54:7.4.3] 

1210.5 Maximum Design Operating Pressure. The maxi- 
mum design operating pressure for piping systems located in- 
side buildings shall not exceed 5 psi (34 kPa) unless one or 
more of the following conditions are met: 

(1) The piping system is welded. 

(2) The piping is located in a ventilated chase or otherwise en- 
closed for protection against accidental gas accumulation. 

(3) The piping is located inside buildings or separate areas of 
buildings used exclusively for one of the following: 

(a) Industrial processing or heating 

(b) Research 

(c) Warehousing 

(d) Boiler or mechanical equipment rooms 

(4) The piping is a temporary installation for buildings under 
construction. 

(5) The piping serves appliances or equipment used for agri- 
cultural purposes. 

(6) The piping system is an LP-Gas piping system with a de- 
sign operating pressure exceeding 20 psi (138 kPa) and 
in accordance with NFPA 58. LP-Gas systems designed 
to operate below -5°F (~21°C) or with butane or a 
propane-butane mix shall be designed to either accom- 
modate liquid LP-Gas or to prevent LP-Gas vapor from 
condensing back into liquid. [NFPA 54:5.5] 

121 0.5 J. Liquefied Petroleum Gas Systems. The max- 
imum operating pressure of LP-Gas piping systems shall 
be: 

( 1 ) I n accordance with Section 1210.4. 1 . 

(2) In accordance with NFPA 58, where the pressure ex- 
ceeds 20 psi (138 kPa). 

(3) Designed to either accommodate liquid LP-Gas or 
prevent LP-Gas vapor from condensing back into a 
liquid in buildings having systems designed to op- 
erate below -5°F (-2.1 °C) or with butane or a 
pro pa n e-b li t a ne mix . 

1210.6 Appliance Overpressure Protection. The maximum 
operating pressure for piping systems serving appliances de- 



signed to operate at 14 inches water column (3.5 kPa) inlet 
pressure or less shall be 2 pounds-force per square inch gauge 
(psig) (14 kPa) unless an over-pressure protection device de- 
signed to limit pressure at the appliance to 2 psig ( 14 kPa) upon 
failure of the line gas pressure regulator is instal led. 

1210.7 Gas Pipe Torus. Changes in direction of gas pipe 
shall be made by the use of fittings, factory bends, or field 
bends. [NFPA 54:7.5] 

1210.7.1 Metallic Pipe. Metallic pipe bends shall com- 
ply with the following: 

(1) Bends shall be made with bending equipment and 
procedures intended for that purpose. 

(2) Bends shall be smooth and free from buckling, 
cracks, or other evidence of mechanical damage. 

(3) The longitudinal weld of the pipe shall be near the 
neutral axis of the bend. 

(4) The pipe shall not be bent through an arc of more 
than 90 degrees (1 .57 rad). 

(5) The inside radius of a bend shall be not less than six 
times the outside diameter of the pipe. [NFPA 
54:7.5.1] 

1210.7.2 Plastic Pipe. Plastic pipe bends shall comply 
with the following: 

(1) The pipe shall not be damaged, and the internal di- 
ameter of the pipe shall not be effectively reduced. 

(2) joints shall not be located in pipe bends. 

(3) The radius of the inner curve of such bends shal l be 
not less than 25 times the inside diameter of the pipe. 

(4) Where the piping manufacturer specifies the use of 
special bending equipment or procedures, such 
equipment or procedures shall be used. [NFPA 
54:7.5.2] 

1.210.7.3 Elbows. Factory-made welding elbows or 
transverse segments cut therefrom shall have an arc 
length measured along the crotch of not less than 1 inch 
(25.4 mm) for pipe sizes 2 inches (50 mm) and larger. 
[NFPA 54:7.5.3] 

1210.8 Drips and Sediment Traps. 

1210.8.1 Provide Drips Where Necessary. For other 
than dry gas conditions, a drip shall be provided at a 
point in the line of pipe where condensate is capable of 
collecting. Where required by the Authority Having Ju- 
risdiction or the serving gas supplier, a drip shall also be 
provided at the outlet of the meter. This drip shall be so 
installed as to constitute a trap wherein an accumulation 
of condensate will shut off the flow of gas before it wil l 
run back into the meter. [NFPA 54:7.6.1 ] 

1210.8.2 Location of Drips. Drips shall be installed in 
such locations that they will be readily accessible to per- 
mit cleaning or emptying. A drip shall not be located 
where the condensate is likely to freeze. [NFPA 54:7.6.2] 

1210.8.3 Sediment Traps. The installation of sediment 
traps shall comply with Section 1211.8. [NFPA 54- 
12:7.6.3] 



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1210.9 Outlets. Outlets shall be located and installed in ac- 
cordance with the following requirements: 

(1 ) The outlet fittings or piping shall be securely fastened in 
place. 

(2) Outlets shall not be located behind doors. 

(3) Outlets shall be located far enough from floors, walls, 
patios, slabs, and ceilings to permit the use of wrenches 
without straining, bending, or damaging the piping. 

(4) The un threaded portion of gas piping outlets shall extend 
not less than I inch (25.4 mm) through finished ceilings 
or indoor or outdoor walls. 

(5) The unthreaded portion of gas piping outlets shall extend 
not less than 2 inches (5 1 mm) above the surface of floors 
or outdoor patios or slabs. 

(6) The provisions of Section 1210.9(4) and Section 
1210.9(5) shall not apply to listed quick-disconnect de- 
vices of the flush-mounted type or listed gas convenience 
outlets. Such devices shall be installed in accordance 
with the manufacturer's installation instructions. [NFPA 
54:7.7.1] 

1210.9.1 Cap Outlets. Each outlet, including a valve, 
shall be closed gastight with a threaded plug or cap im- 
mediately after installation and shall be left closed until 
the appliance is connected thereto. Where an appliance is 
disconnected from an outlet, and the outlet is not to be 
used again immediately, it shall be closed gastight. 

Exceptions: 

(1) Laboratory equipment installed in accordance with 
Section 1211.3.1 shall be permitted. 

(2) The use of a listed quick-disconnect device with in- 
tegral shutoff or listed gas convenience outlet shall 
be permitted. [NFPA 54:7.7.2.1] 

1210.9.1.1 Appliance Shutoff Valves. Appliance 
shutoff valves installed in fireplaces shall be re- 
moved and the piping capped gastight where the 
fireplace is used for solid-fuel burning. [NFPA 
54:7.7.2.2] 

1210.10 Branch Pipe Connection. Where a branch outlet is 
placed on a main supply line before it is known what size pipe 
will be connected to it, the outlet shall be of the same size as 
the line that supplies it. [NFPA 54:7.8] 

1210.11 Manual Gas Shutoff Valves. An accessible gas 
shutoff valve shal l be provided upstream of each gas pressure 
regulator. Where two gas pressure regulators are installed in 
series in a single gas line, a manual valve shall not be required 
at the second regulator. [NFPA 54:7.9.1] 

1210.11.1 Valves Controlling Multiple Systems. Main 
gas shutoff valves controlling several gas piping systems 
shall be readily accessible for operation and installed so 
as to be protected from physical damage. They shall be 
marked with a metal tag or other permanent means at- 
tached by the installing agency so that the gas piping sys- 
tems supplied through them are readily identified. [NFPA 
54:7.9.2.1] 



1210.11. 1.1 Shutoff Valves for Multiple House 
Lines. In multiple-tenant buildings supplied through 
a master meter, or through one service regulator 
where a meter is not provided, or where meters or 
service regulators are not readily accessible from the 
equipment location, an individual shutoff valve for 
each apartment or tenant line shall be provided at a 
convenient point of general accessibil ity. In a com- 
mon system serving a number of individual build- 
ings, shutoff valves shall be installed at each 
building. [NFPA 54:7.9.2.2] 

1210.11.2 Emergency Shutoff Val ves. An exterior shut- 
off valve to permit turning off the gas supply to each 
building in an emergency shall be provided. The emer- 
gency shutoff valves shall be plainly marked as such and 
their locations posted as required by the Authority Hav- 
ing Jurisdiction. [NFPA 54:7.9.2.3] 

1210.11.3 Shutoff Valve for Laboratories. Each labora- 
tory space containing two or more gas outlets installed on 
tables, benches, or in hoods in educational, research, com- 
mercial and industrial occupancies shall have a single 
shutoff valve through which such gas outlets are suppl ied. 
The shutoff valve shall be accessible and shall be located 
within the laboratory or located adjacent to the laboratory's 
egress door and shall be identified. [NFPA 54:7.9.2.4] 

1210.12 Prohibited Devices. No device shall be placed inside 
the gas piping or fittings that will reduce the cross-sectional 
area or otherwise obstruct the free flow of gas, except where 
an allowance in the piping system design has been made for 
such a device and where approved by the Authority Having 
Jurisdiction. [NFPA 54:7. 1 0] 

1210.13 Systems Containing Gas-Air Mixtures Outside 
the Flammable Range. Where gas-air mixing machines are 
employed to produce mixtures above or below the flammable 
range, they shall be provided with stops to prevent adjustment 
of the mixture to within or approaching the flammable range. 
[NFPA 54:7. 11] 

1210.14 Systems Containing Flammable Gas-Air Mix- 
tures. Systems containing flammable gas-air mixtures shall 
be in accordance with NFPA 54. 

1210.15 Electrical Bonding and Grounding. 

1210.15.1 Pipe and Tubing other than CSST. Each 
aboveground portion of a gas piping system other than 
CSST that is likely to become energized shall be electri- 
cally continuous and bonded to an effective ground-fault 
current path. Gas piping, other than CSST, shall be con- 
sidered to be bonded where it is connected to appliances 
that are connected to the appliance grounding conductor 
of the circuit supplying that appliance. [NFPA 54:7. 13.1] 

1210.15.2 Bonding of CSST Gas Piping. CSST gas pip- 
ing systems shall be bonded to the electrical service 
grounding electrode system. The bonding jumper shall 
connect to a metallic pipe or fitting between the point of 
delivery and the first downstream CSST fitting. The 
bonding jumper shall be not smaller than 6 AWG copper 
wire or equivalent. Gas piping systems that contain one 
or more segments of CSST shall be bonded in accor- 
dance with this section. [NFPA 54-12:7. 1 3.2] 



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1210.15.3 Grounding Conductor or Electrode. Gas 
piping shall not be used as a grounding conductor or elec- 

I trode. [NFPA 54- 12:7. 13.3] 

1210.15.4 Lightning Protection System. Where a light- 
ning protection system is installed, the bonding of the 
gas piping system shall be in accordance with NFPA 780. 
[NFPA 54:7. 13.4] 

1210.16 Electrical Circuits. Electrical circuits shall not uti- 
lize gas piping or components as conductors. 

Exception: Low- voltage (50V or less) control circuits, igni- 
tion circuits, and electronic flame detection device circuits 
shall be permitted to make use of piping or components as a 
part of an electric circuit. [N FPA 54:7.14] 

1210.17 Electrical Connections. Electrical connections be- 
tween wiring and electrically operated control devices in a 
piping system shall comply with the requirements of Cali- 
fornia Electrical Code. 

1210.17.1 Safety Control. An essential safety control 
depending on electric current as the operating medium 
shal l be of a type that will shut off (fail safe) the flow of 
gas in the event of current failure. [N FPA 54:7.15.2] 

1210.18 Earthquake-Actuated Gas Shutoff Valves. Earth- 
quake-actuated gas shut off valves, certified by the State Archi- 
tect as conforming to California Referenced Standards Code 
(CRSC), Standard 12-12-1, shall he provided for buildings 
when such installation is required by local ordinance. Earth- 
quake-actuated gas shutoff valves which have not been certified 
by the State Architect shall be prohibited in buildings open to 
the public under mandatory installation by local ordinance. 

A n earthquake-act uated gas sh utoff valve is a valve for 
installation in a gas piping system and designed to automat- 
ically shut off the gas at the location of the valve in the event 
of a seismic disturbance. 

1211.0 Appliance Connections to Building Piping. 
1 1.211.1 Connecting Gas Appliances. Appliances shall be 
connected to the building piping in accordance with Section 
1 2 1 1 .5 through Section 1 2 1 1 .7 by one of the following [NFPA 
54:9.6.1]: 

(1) Rigid metallic pipe and fittings. [NFPA 54:9.6.1(1)] 

(2) Semirigid metallic tubing and metallic fittings. Alu- 
minum alloy tubing shall not be used in exterior loca- 
tions. [NFPA 54:9.6. 1(2)] 

(3) A listed connector installed in accordance with CSA 
Z21.24. The connector shall be installed in accordance 
with the manufacturer's installation instructions and shall 
be in the same room as the appliance. One connector 
shall be installed for each appliance. [NFPA 54:9.6.1(3)] 

(4) CSST where installed in accordance with the manufac- 
| hirer's installation instructions. [NFPA 54:9.6.1(5)] 

I (5) Listed non metallic gas hose connectors installed in ac- 
cordance with Section 121 1 .3. [NFPA 54:9.6. 1(6)] 
S(6) Commercial cooking appliances that are moved for 
I cleaning and sanitation purposes shall be installed in ac- 
cordance with the connector manufacturer's installation 
instructions using a listed appliance connector in accor- 



dance with CSA Z21.69. The commercial cooking ap- 
pliance connector installation shall be configured in ac- 
cordance with the manufacturer's installation 
instructions. [NFPA 54:9.6.1.1] 

(7) Movement of appliances with casters shall be limited by 
a restraining device instal led in accordance with the con- 
nector and appliance manufacturer's installation instruc- 
tions. [NFPA 54:9.6.1.2] 

(8) In Section 1211.1(2), Section 1211.1(3), and Section 
1211.1(5), the connector or tubing shall be installed so 
as to be protected against physical and thermal damage. 
Aluminum alloy tubing and connectors shall be coated 
to protect against external corrosion where they are in 
contact with masonry, plaster, insulation, or are subject to 
repeated wettings by such liquids as water (except rain- 
water), detergents, or sewage. [NFPA 54:9.6.1 (7)] 

1.211.2 Suspended Low-Intensity Infrared Tube Heaters. 
Suspended low-intensity infrared tube heaters shall be con- 
nected to the building piping system with a connector listed 
for the application in accordance with CSA 221.24 and the 
following requirements: 

( 1) The connector shall be installed in accordance with the 
tube heater installation instructions, and shall be in the 
same room as the appliance. 

(2) One connector shall be used per appliance. [NFPA 
54:9.6.1.3] 

121.1.3 Use of Nonmetallic Gas Hose Connectors. Listed 
non metal lie gas hose connectors shall be installed in accor- 
dance with the manufacturer's installation instructions and in 
accordance with Section 1211.3.1 and Section 1211.3.2. 
[NFPA 54:9.6.2] 

1211.3.1 Indoor. Indoor gas hose connectors shall be 
used to connect laboratory, shop, and ironing equipment 
requiring mobility during operation. An appliance shut- 
off valve shall be installed where the connector is at- 
tached to the building piping. The connector shall be of 
minimum length and shall not exceed 6 feet (1 829 mm). 
The connector shall not be concealed and shall not ex- 
tend from one room to another or pass through wall par- 
titions, ceilings, or floors. [NFPA 54:9.6.2(1)] 

1211.3.2 Outdoor. Where outdoor gas hose connectors 
are used to connect portable outdoor appliances, the con- 
nector shall be listed in accordance with CSA Z21.54. 
An appl iance shutoff valve, a listed quick-disconnect de- 
vice, or a listed gas convenience outlet shall be installed 
where the connector is attached to the supply piping and 
in such a manner to prevent the accumulation of water 
or foreign matter. This connection shall be made only in 
the outdoor area where the appliance is to be used. 
[NFPA 54-12:9.6.2(2)] 

The connector length shall not exceed 15 feet (4572 
mm). 

1211.4 Connection of Portable and M obile Ind ustrial Gas 
Appliances. 

1211.4.1 Flexible Hose. Where portable industrial ap- 
pliances, or appliances requiring mobility or subject to 
vibration, are connected to the building gas piping sys- 



212 



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FUEL GAS PIPING 



tern by the use of a flexible hose, the hose shall be ap- 
[ proved and safe for the conditions under which it is used. 
| [NFPA 54:9.6.3.1] 

1211.4.2 Swivel Joints or Couplings. Where industrial 
[ appliances requiring mobility are connected to the rigid 

piping by the use of swivel joints or couplings, the swivel 
| joints or couplings shall be approved for the service re- 
quired, and only the minimum number required shall be 
installed. [NFPA 54:9.6.3.2] 

1211.4.3 Metal Flexible Connectors. Where industrial 
| appliances subject to vibration are connected to the build- 
ing piping system by the use of metal flexible connec- 

| tors, the connectors shall be approved for the service 
required. [NFPA 54:9.6.3.3] 

1211.4.4 Flexible Connectors. Where flexible connec- 
tions are used, they shall be of the minimum practical 
length and shall not extend from one room to another or 
pass through walls, partitions, ceilings, or floors. Flexi- 
ble connections shall not be used in a concealed location. 
They shall be protected against physical or thermal dam- 
age and shall be provided with gas shutoff valves in read- 
ily accessible locations in rigid piping upstream from the 
flexible connections. [NFPA 54:9.6.3.4] 

j 1211.5 Appliance Shutoff Valves and Connections. Appli- 
ances connected to a piping system shall have an accessible, 
approved manual shutoff valve with a nondisplaceable valve 
member, or a listed gas convenience outlet installed within 6 
feet (1829 mm) of the appliance it serves. Where a connector 
is used, the valve shall be installed upstream of the connector. 
A union or flanged connection shall be provided downstream 
from this valve to permit removal of controls. Shutoff valves 
serving decorative gas appliances shall be permitted to be in- 
stalled in fireplaces where listed for such use. [NFPA 54:9.6.4] 

Exceptions: 

( 1 ) Shutoff valves shall be permitted to be accessibly located 
inside or under an appliance where such appliance is re- 
moved without removal of the shutoff valve. 

(2) Shutoff val ves shall be permitted to be accessibly located 
inside wall heaters and wall furnaces listed for recessed 
installation where necessary maintenance is performed 
without removal of the shutoff val ve. 

1211.6 Quick-Disconnect Devices. Quick-disconnect devices 
used to connect appliances to the building piping shall be 
listed. Where installed indoors, an approved manual shutoff 
valve with a non-displaceable valve member shall be installed 
upstream of the quick-disconnect device, [NFPA 54:9.6.5] 

1211.7 Gas Convenience Outlets. Appliances shall be per- 
mitted to be connected to the building piping by means of a 
listed gas convenience outlet, in conjunction with a listed ap- 
pliance connector, installed in accordance with the manufac- 
turer's installation instructions. 

Gas convenience outlets shall be listed in accordance 
with CSA Z21.90 and installed in accordance with the man- 
ufacturer's installation instructions. [NFPA 54:9.6.6] 

1211.8 Sediment Trap. Where a sediment trap is not incor- 
| porated as a part of the appliance, a sediment trap shall be in- 
stalled downstream of the appliance shutoff valve as close to 



the inlet of the appliance as practical at the time of appliance 
installation. The sediment trap shal l be either a tee fitting with 
a capped nipple in the bottom outlet, as illustrated in Figure 
121 1,8, or other device recognized as an effective sediment 
trap. Illuminating appliances, ranges, clothes dryers, decora- 
tive appliances for installation in vented fireplaces, gas fire- [ 
places, and outdoor grills shall not be required to be so 
equipped. [NFPA 54:9.6.7] 



Gas supply inlet 

i 



To r 
equipments — V 
inlet UL 



-U 



Nipple- 



-Tee fitting 



Cap 



3 inch 
minimum 



For SI units: 1 inch = 25.4 mm 



FIGURE 1211.8 
METHOD OF INSTALLING A 
TEE FITTING SEDIMENT TRAP 
[NFPA 54: FIGURE 9.6.7] 



1211.9 Installation of Piping. Piping shall be installed in a 
manner not to interfere with inspection, maintenance, or serv- 
icing of the appliance. [NFPA 54:9.6.8] ! 

1212.0 Liquefied Petroleum Gas Facilities and Piping. 

1212.1 General. Liquefied petroleum gas facilities shall com- 
ply with NFPA 58. 

1213.0 Pressure Testing and Inspection. 

1213.1 Piping Installations. Prior to acceptance and initial 
operation, piping installations shall be visually inspected and | 
pressure-tested to determine that the materials, design, fabri- 
cation, and installation practices are in accordance with the re- 
quirements of this code. [N FPA 54-12:8.1 .1 .1] 

1213.1.1 Inspection Requirements. Inspection shall con- 
sist of visual exam ination during or after manufacture, fab- 
rication, assembly, or pressure tests. [NFPA 54- 12:8.1.1 .2] | 

1213.1.2 Repairs and Additions. Where repairs or ad- 
ditions are made following the pressure test, the affected 
piping shall be tested. Minor repairs and additions are 
not required to be pressure-tested provided that the work 
is inspected and connections are tested with a noncorro- 
sive leak-detecting fluid or other leak-detecting methods 
approved by the Authority Having jurisdiction. [NFPA 
54:8.1.1.3] 

1213.1.3 New Branches. Where new branches are in- 
stalled from the point of delivery to new appliances, the 



2013 CALIFORNIA PLUMBING CODE 



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FUEL GAS PIPING 



newly installed branches shall be required to be pressure- 
tested. Connections between the new piping and the ex- 
isting piping shall be tested with a noncorrosive 
leak-detecting fluid or approved leak-detecting methods. 
[NFPA 54:8. LI. 4] 

1213.1.4 Piping System. A piping system shall be tested 
as a complete unit or in sections. Under no circumstances 
shall a valve in a line be used as a bulkhead between gas 
in one section of the piping system and test medium in an 
adjacent section, unless two valves are installed in series 
with a valved "telltale" located between these valves. A 
valve shall not be subjected to the test pressure unless it 
is determined that the valve, including the valve-closing 
mechanism, is designed to safely withstand the pressure. 
[NFPA 54:8.1.1.5] 

.1213.1.5 Regulators and Valves. Regulator and valve 
assemblies fabricated independently of the piping sys- 
tem in which they are to be installed shall be permitted to 
be tested with inert gas or air at the time of fabrication. 
[NFPA. 54:8.1.1.6] 

1213.1.6 Test Medio m. The test medium shall be air, ni- 
trogen, carbon dioxide, or an inert gas. OXYGEN 
SHALL NEVER BE USED. [NFPA 54:8.1.2] 

1.213.2 Test Preparation. 

1213.2.1 Pipe Joints. Pipe joints, including welds, shall 
be left exposed for examination during the test. 

Exception: Covered or concealed pipe end joints that 
have been previously tested in accordance with this code. 
[NFPA 54:8.1.3.1] 

1213.2.2 Expansion Joints. Expansion joints shall be 
provided with temporary restraints, where required, for 
the additional thrust load under test. [NFPA 54:8.1.3.2] 

12.13.2.3 Appliances and Equipment. Appliances and 
equipment that are not to be included in the test shall be 
either disconnected from the piping or isolated by blanks, 
blind flanges, or caps. Flanged joints at which blinds are 
inserted to blank off other equipment during the test shal l 
not be required to be tested. [NFPA 54:8. 1 .3.3] 

.1213.2.4 Designed for (less than) Operating Pressures. 
Where the piping system is connected to appliances, 
equipment, or equipment components designed for op- 
erating pressures of less than the test pressure, such ap- 
pliances, equipment, or equipment components shall be 
isolated from the piping system by disconnecting them 
and capping the outlets. [NFPA 54:8.1.3.4] 

1213.2.5 Designed for (equal to or more than) Oper- 
ating Pressures. Where the piping system is connected 
to appliances or equipment designed for operating pres- 
sures equal to or greater than the test pressure, such ap- 
pliances and equipment shall be isolated from the piping 
system by closing the individual appliance or equipment 
shutoff valve(s). [NFPA 54:8. 1 .3.5] 

1213.2.6 Safety. Testing of piping systems shall be per- 
formed in a manner that protects the safety of employees 
and the public during the test. [NFPA 54-12:8. 1 .3.6] 



1213.3 Test Pressure. This inspection shall include an air, 
CO 2 , or nitrogen pressure lest, at which time the gas piping 
shall stand a pressure of not less than 10 psi (69 kPa) gauge 
pressure. Test pressures shall be held for a length of time sat- 
isfactory to the Authority Having Jurisdiction, but in no case 
less than 1 5 minutes with no perceptible drop in pressure. For 
welded piping, and for piping carrying gas at pressures in ex- 
cess of 14 inches water column pressure (3.5 kPa), the test 
pressure shall be not less than 60 psi (414 kPa) and shall be 
continued for a length of time satisfactory to the Authority 
Having Jurisdiction, but in no case for less than 30 minutes. 
These tests shall be made using air, C0 2 , or nitrogen pressure 
and shall be made in the presence of the Authority Having Ju- 
risdiction. Necessary apparatus for conducting tests shall be 
furnished by the permit holder. Test gauges used in conduct- 
ing tests shall be in accordance with Section 318.0. 

1213.4 Detection of Leaks and Defects. The piping system 
shall withstand the test pressure specified without showing 
evidence of leakage or other defects. Reduction of test pres- 
sures as indicated by pressure gauges shall be deemed to in- 
dicate the presence of a leak un less such reduct ion is readily 
attributed to some other cause. [NFPA 54:8.1.5. 1] 

1213.4.1 Detecting Leafed The leakage shall be located 
by means of an approved gas detector, a noncorrosive 
leak detection fluid, or other approved leak detection 
methods. Matches, candles, open flames, or other meth- 
ods that provide a source of ignition shall not be used. 
[NFPA 54:8.1.5.2] 

.1213.4.2 Repair or Replace. Where leakage or other de- 
fects are located, the affected portion of the piping sys- 
tem shall be repaired or replaced and retested. [NFPA | 
54-12:8.1.5.3] 

1213.5 Piping System Leak iest. Leak checks using fuel gas 
shall be permitted in piping systems that have been pressure- 
tested in accordance with Section 12.13.0. [NFPA 54:8.2. 1] 

1.213.5.1 Turning Gas On. During the process of turn- 
ing gas on into a system of new gas piping, the entire sys- 
tem shall be inspected to determine that there are no open 
fittings or ends and that valves at unused outlets are 
closed and plugged or capped. [NFPA 54:8.2.2] 

.1213.5.2 Leak Cheek, Immediately after the gas is 
turned on into a new system or into a system that has 
been initially restored after an interruption of service, the 
piping system shall be checked for leakage. Where leak- 
age is indicated, the gas supply shall be shut off until the 
necessary repairs have been made. [NFPA 54:8.2.3] 

.1213.5.3 Placing Appliances and Equipment in Oper- 1 
ation. Appliances and equipment shall not be placed in 1 
operation until alter the piping system has been checked 
in accordance with Section 1213.5.2; connections to the 1 
appliance are checked for leakage; and purged in accor- i 
dance with Section 1213.6. [NFPA 54-1 2:8.2.4] 

1213.6 Purging Requirements. The purging of piping shall I 
be in accordance with Section 1213.6.1 through Section! 
1213.6.3. [NFPA 54-1 2:8.3] 



214 



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1.213.6.1 Piping Systems Required to be Purged Out- 
doors. The purging of piping systems shall be in accor- 
dance with the provisions of Section 12 1 3.6. 1.1 through 
Section 1 2 1 3.6. 1 .4 where the piping system meets either 
of the following: 

(1) The design operating gas pressure exceeds 2 psig 
(14kPa). 

(2) The piping being purged contains one or more sec- 
tions of pipe or tubing meeting the size and length 
criteria of Table 1213.6.1. [NFPA 54-12:8.3.1] 

TABLE 1213.6.1 
SIZE AND LENGTH OF PIPSNG 
[NFPA 54-12: TABLE 8.3.1]* 

NOMINAL PIPING LENGTH OF PIPING 

SIZE (inches) (feet) 

I >2 ! /2 < 3 > 50 
>3<4 >30 
>4<6 > 15 
>6 <8 > ID 

> 8 Any length 

For Si units: 1 inch = 25 mm, 1 foot = 304.8 mm 

* CSST BH D size of 62 is equivalent to nominal 2 inches (50 mm) pipe or 
tubing size. 



1.213.6.1.1. Removal from Service. Where existing 
gas piping is opened, the section that is opened shall 
be isolated from the gas supply and the line pressure 
vented in accordance with Section 1213.6.1.3. 
Where gas piping meeting the criteria of Table 
1213.6.1 is removed from service, the residual fuel 
gas in the piping shall be displaced with an inert gas. 
[NFPA 54-12:8.3.1.1] 

1213.6.1.2 Placing in Operation. Where gas pip- 
ing containing air and meeting the criteria of Table 
12 13.6. 1 is placed in operation, the air in the piping 
shall first be displaced with, an inert gas. The inert 
gas shall then be displaced with fuel gas in accor- 
dance with Section 1213.6.1.3. [NFPA 54- 
12:8.3.1.2] 

1.21.3.6.1.3 Outdoor Discharge of Purged Gases. 
The open end of a piping system being pressure 
vented or purged shall discharge directly to an out- 
door location. Purging operations shall comply with 
the following requirements: 

( 1 ) The point of discharge shall be controlled with 
a shutoff valve. 

(2) The point of discharge shall be located not less 
than 10 feet (3048 mm) from sources of igni- 
tion, not less than 10 feet (3048 mm) from 
building openings, and not less than 25 feet 
(7620 mm) from mechanical air intake open- 
ings. 

(3) During discharge, the open point of discharge 
shall be continuously attended and monitored 
with a combustible gas indicator that is in ac- 
cordance with Section 1213.6.1 .4. 



(4) Purging operations introducing fuel gas shall be 1 
stopped where 90 percent fuel gas by volume is i 
detected within the pipe. 

(5) Persons not involved in the purging operations 
shall be evacuated from areas within 10 feet 
(3048 mm ) of the point of discharge. [NFPA 54- 1 
12:8.3.1.3] 

1.213.6.1.4 Combustible Gas Indicator. Com- 1 
bustible gas indicators shall be listed and shall be 
calibrated in accordance with the manufacturer's in- 1 
structions. Combustible gas indicators shall numer- 
ically display a volume scale from percent to 100 
percent in 1 percent or smaller increments. [NFPA 
54-12:8.3.1.4] 

1213.6.2 Piping Systems Allowed to be Purged In- 
doors or Outdoors. The purging of piping systems shal l 
be in accordance with the provisions of Section 
1213.6.2.1 where the piping system meets both of the 
following: 

(1) The design operating pressure is 2 psig (14 kPa) or 
less. 

(2) The piping being purged is constructed entirely from 
pipe or tubing not meeting the size and length crite- 
ria of Table 1213.6.1. [NFPA. 54-12:8.3.2]" 

1213.6.2.1 Purging Procedure. The piping system 
shall be purged in accordance with one or more of 
the following: 

(1) The piping shall be purged with fuel gas and 
shall discharge to the outdoors. 

(2) The piping shall be purged with fuel gas and 
shall discharge to the indoors or outdoors 
through an appliance burner not located in a 
combustion chamber. Such burner shall be pro- 
vided with a continuous source of ignition. 

(3) The piping shall be purged with fuel gas and 
shall discharge to the indoors or outdoors 
through a burner that has a continuous source 
of ignition and that is designed for such pur- 
pose. 

(4) The piping shall be purged with fuel gas that is 
discharge to the indoors or outdoors, and the 
point of discharge shall be monitored with a 
listed combustible gas detector in accordance 
with Section 1213,6.2.2. Purging shall be 
stopped where fuel gas is detected. 

(5) The piping shall be purged by the gas supplier 
in accordance with written procedures. [NFPA 
54-12:8.3.2.1] 

1213.6.2.2 Combustible Gas Detector. Combustible 
gas detectors shall be listed and shall be calibrated or 
tested in accordance with the manufacturer's instruc- 
tions. Combustible gas detectors shall be capable of 
indicating the presence of fuel gas. [NFPA 54- 
12:8.3.2.2] 

1213.6.3 Purging Appliances and Equipment. After 
the piping system has been placed in operation, appli- 



2013 CALIFORNIA PLUMBING CODE 



215 



FUEL GAS PIPING 



f ances and equipment shall be purged before being placed 
I into operation. [N.F.PA 54-1 2:8.3.3] 

.121.4.0 Interconnections Between Gas Piping Systems. 
12.14.1 Interconnections Supplying Separate Users. Where 
two or more meters, or two or more service regulators where 
meters are not provided, are located on the same premises and 
supply separate users, the gas piping systems shall not be in- 
terconnected on the outlet side of the meters or service regu- 
lators. [N FPA 54:5.3.1] 

1214.2 Interconnections for Standby Fuels. Where supple- 
mentary gas for standby use is connected downstream from a 
meter or a service regulator where a meter is not provided, a 
device to prevent backflow shall be installed. A three-way 
valve installed to admit the standby supply and at the same 
time shut off the regular supply shall be permitted to be used 
for this purpose. [NF.PA. 54:5.3.2] 

1215.0 Required Gas Supply. 

1215.1 General. The following regulations, shall comply 
1 with this section and Section 1 2 1 6.0, shall be the standard for 

the installation of gas piping. Natural gas regulations and ta- 
bles are based on the use of gas having a specific gravity of 
0.60, supplied at 6 to 8 inches water column (1.5 kPa to .1.9 
kPa) pressure at the outlet of the meter or regulator. For undi- 
luted liquefied petroleum gas, gas piping shall be permitted to 
be sized at 1 1 inches water column (2.7 kPa) pressure at the 
outlet of the meter or regulator and specific gravity of 1.50. 
Where gas of a different specific gravity is to be deli vered, the 
1 specific gravity conversion factors provided by the serving 
1 gas supplier shall be used in sizing piping systems from the 
pipe sizing tables in this chapter. 

1215.2 Volume. The hourly volume of gas required at each 
piping outlet shall be taken as not less than the maximum 
hourly rating as specified by the manufacturer of the appli- 
ance or appliances to be connected to each such outlet. 

1215.3 Gas Appliances. Where the gas appliances to be in- 
stalled have not been definitely specified, Table 1208.4.1 shall 
be permitted to be used as a reference to estimate require- 
ments of typical appliances. 

To obtain the cubic feet per hour (m 3 /h) of gas required, 
divide the input of the appliances by the average Btu (kW»h) 
heating value per cubic foot (in 3 ) of the gas. The average Btu 
(k.W*h) per cubic foot (in 3 ) of the gas in the area of the in- 
stallation shall be permitted to be obtained from the serving 
gas supplier. 

1215.4 Size of .Piping Outlets. The size of the supply piping 
outlet for a gas appliance shall be not less than Vi of an inch 
(15 mm). 

The size of a piping outlet for a mobile home shall be not 
less than >4 of an inch (20 mm ). 

1216.0 Required Gas Piping Size. 

1216.1 Pipe Sizing Methods. Where the pipe size is to be 
determined using a method in Section 1216.1.1 through Sec- 



tion .1216.1.3, the diameter of each pipe segment shal l be ob- 
tained from the pipe sizing tables in Section 1216.2 or from 
the sizing equations in Section 1216.3. [NF.PA 54:6.1] 

1216.1.1 Longest Length Method. The pipe size of each 
section of gas piping shall be determined using the 
longest length of piping from the point of delivery to the 
most remote outlet and the load of the section (see cal- 
culation example in Figure 1 2 3 6.3 . 1 ). [NFPA 54:6. 1.1] 

1216.1.2 Branch Length Method. Pipe shall be sized 
as follows: 

( 1 ) The pipe size of each section of the longest pipe run 
from the point of deli very to the most remote outlet 
shall be determined using the longest run of piping 
and the load of the section. 

(2) The pipe size of each section of branch piping not 
previously sized shall be determined using the 
length of piping from the point of delivery to the 
most remote outlet in each branch and the load of 
the section. [NFPA 54:6.1.2] 

1216.1.3 Hybrid Pressure. The pipe size for each sec- 
tion of higher pressure gas piping shall be determined 
using the longest length of piping from the point of de- 
livery to the most remote line pressure regulator. The 
pipe size from the line pressure regulator to each outlet 
shall be determined using the length of piping from the 
regulator to the most remote outlet served by the regula- 
tor. [NFPA 54:6. 1.3] 

1216.2 Tables for Sizing Gas Piping Systems. Table 
121 6.2(1) through Table 1216.2(36) shall be used to size gas 
piping in conjunction with one of the methods described in 
Section 1216.1.1 through Section 1216.1.3. [NFPA 54:6.2] 

1216.3 Sizing Equations. The inside diameter of smooth- 
wall pipe or tubing shall be determined by Equation 1 
1216.3(1), Equation 1216.3(2). Table 1216.3, and using the 1 
equivalent pipe length determined by Section 1216.1.1 
through Section 1216.1.3. [NFPA 54:6.4] 

EQUATION 1216.3(1) 
LOW-PRESSURE GAS FORMULA (LESS THAN 1.5 psi) 
[NFPA 54:6 .4.1] 




Where: 

D = inside diameter of pipe, inches 

O = input rate appliance(s), cubic feet per hour at 60°F and 
30 inch mercury column 

L = equivalent length of pipe, feet 

AH = pressure drop, inches water column 

Cr = in accordance with Table 1216.3 



216 



2013 CALIFORNIA PLUMBING CODE 



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EQUATION 1216.3(2) 
HIGH-PRESSURE GAS FORMULA (1.5 psi AND ABOVE) 
[NFPA 54:6.4.2] 



D 



Q 



•0.381 



18.93 



Cr xL J 



0.206 



Where: 

D = inside diameter of pipe, inches 

= input rate appliance(s), cubic feet per hour at 60°F and 

30 inch mercury column 

Pj = upstream pressure, psia {P, + 14.7) 

P 2 = downstream pressure, psia (P 2 + 14.7) 

1 - equivalent length of pipe, feet 
Cr = in accordance with Table 1216.3 
Y ~ in accordance with Table 1216.3 



For SI units: 1 cubic foot = 0.0283 m\ 1 000 British thermal units per hour = 
0.293 kW, 1 inch = 25 mm, I foot = 304.8 mm, 1 pound-force per square 
inch - 6.8947 kPa, °C = (°F-32)/l.S, I inch mercury column = 3.39 kPa, 1 
inch water column = 0.249 kPa 



(6) Size each section of branch piping not previously sized 
by measuring the distance from the gas meter location to 
the most remote outlet in that branch and follow the pro- 
cedures of steps 2, 3, 4, and 5 above. Size branch piping 
in the order of their distance from the meter location, be- 
ginning with the most distant outlet not previously sized. 

1216.5 Engineering Methods. For conditions other than 
those covered by Section 1216.1, such as longer runs or 
greater gas demands, the size of each gas piping system shall 
be determined by standard engineering methods acceptable 
to the Authority Having Jurisdiction, and each such system 
shall be so designed that the total pressure drop between the 
meter or other point of supply and an outlet where full de- 
mand is being supplied to all outlets, shall be in accordance 
with the requirements of Section 1208.4. 

1216.6 Variable Gas Pressure. Where the gas pressure ex- 
ceeds 14 inches (3.5 kPa) or Jess than 6 inches (1.5 kPa) of 
water column, or where diversity demand factors are used, 
the design, pipe, sizing, materials, location, and use of such 
systems first shall be approved by the Authority Having Ju- 
risdiction. Piping systems designed for pressures exceeding 
the serving gas supplier's standard delivery pressure shall 
have prior verification from the gas supplier of the availabil- 
ity of the design pressure. 



TABLE 1216.3 

Cr AND Y FOR NATURAL GAS AND UNDILUTED PROPANE 
AT STANDARD CONDITIONS 
[NFPA 54: TABLE 6.4.2] 

FORMULA FACTORS 



Cr 


Y 


Natural Gas 


0.6094 


0.9992 


Undiluted Propane 


1.2462 


0.9910 



1216.4 Sizing of Piping Sections. To determine the size of 
1 each section of pipe in a system within the range of Table 
121 6.2(1) through Table 1216.2(36), proceed as follows: 

(1) Measure the length of the pipe from the gas meter loca- 
tion to the most remote outlet on the system. 

(2) Select the length in feet column and row showing the dis- 
tance, or the next longer distance where the table does 
not give the exact length. 

(3) Starting at the most remote outlet, find in the row just se- 
lected the gas demand for that outlet. Where the exact 
figure of demand is not shown, choose the next larger 
figure in the row. 

(4) At the top of this column will be found the correct size 
of pipe. 

(5) Using this same row, proceed in a similar manner for 
each section of pipe serving this outl et. For each section 
of pipe, determi ne the total gas demand supplied by that 
section. Where gas piping sections serve both heating 
and cooling appliances and the installation prevents both 
units from operating simultaneously, the larger of the two 
demand loads needs to be used in sizing these sections. 



2013 CALIFORNIA PLUMBING CODE 



217 



FUEL GAS PIPING 



FIGURE 1216.1.1 EXAMPLE ILLUSTRATING USE OF TABLES 1208A1 AND 1216.2(1) 

Problem: Determine the required pipe size of each section and outlet of the piping system shown in Figure .1216.1.1. Gas to be 
used has a specific gravity of 0.60 and 1 100 British thermal units (Btu) per cubic foot (0.01 14 kW e h/L), delivered at 8 inch water 
column (1.9 kPa) pressure. 



Section 3 
-20 feet — 



150 000 Btu/h 
Furnace 



30 gallon 
Automatic 
Water Heater 



O • 
c 



Section 2 
— 10 feet - 



Section 1 
-10 feet - 



Gas Meter 



Gas 

Refrigerator 



Range 

For SI units: l foot - 304.8 mm, I gallon - 3.785 L, 1000 British thermal units per hour = 0.293 kW, 1 cubic foot per hour - 0.0283 nrVh 

Solution: 

( 1 ) Maximum gas demand of Outlet A — 

32 cubic feet per hour (0.91 m 3 /h) (from Table 1208.4.1). 
Maximum gas demand of Outlet B — 

3 cubic feet per hour (0.08 mVh) (from Table 1208.4.1). 
Maximum gas demand of Outlet C — 

59 cubic feet per hour (1.67 mVh) (from Table 1208.4.1). 
Maxi mum gas demand of Outlet D — 

1 36 cubic feet per hour (3.85 mVh) [150 000 Btu/hour (44 kW) divided by 1 1 00 Btu per cubic foot (0.01 1 4 

kW-h/L)]. 

(2) The length of pipe from the gas meter to the most remote outlet (Outlet A) is 60 feet (18 288 mm). 

(3) Using the length in feet column row marked 60 feet (18 288 mm) in Table 1216.2(1): 
Outlet A, supplying 32 cubic feet per hour (0.91 mVh), requires Vi of an inch (15 mm) pipe. 

Section 1, supplying Outlets A and B, or 35 cubic feet per hour (0.99 mVh) requires Vi of an inch (15 mm) pipe. 
Section 2 ? supplying Outlets A, B, and C, or 94 cubic feet per hour (2.66 mVh) requires 3 A of an inch (20 mm) pipe. 
Section 3, supplying Outlets A, B, C, and D, or 230 cubic feet per hour (6.51 mVh), requires 1 inch (25 mm) pipe. 

(4) Using the column marked 60 feet (18 288 mm) in Table 121 6.2(1) [no column for actual length of 55 feet (16 764 mm)]: 
Outlet B supplying 3 cubic feet per hour (0.08 mVh), requires Vi of an inch (15 mm) pipe. 

Outlet C, supplying 59 cubic feet per hour (1.67 m Vh), requires Vi of an inch (15 mm) pipe. 

(5) Using the column marked 60 feet (18 288 mm) in Table 1216.2(1): 

Outlet D, supplying 136 cubic feet per hour (3.85 mVh), requires Va of an inch (20 mm) pipe. 



218 



2013 CALIFORNIA PLUMBING CODE 



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TABLE 1216.2(1) 

SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.2(b)] 1 ' 2 

GAS: NATURAL 
INLET PRESSURE: LESS THAN 2 psi 
PRESSURE DROP: 0.5 in. w.c. 
SPECIFIC GRAVITY: 0.60 



PIPE SIZE (inch) 



NOMINAL: 


y 2 


3 /> 


1 


VA 


VA 


2 


2V 2 


3 


4 


5 


6 


8 


10 


12 


ACTUAL ID: 


0.622 


0.824 


1.049 


1.380 


1.610 


2.067 


2.469 


3.068 


4.026 


5.047 ; 


6.065 


7.981 


10.020 


11.938 


LENGTH 
(feet) 












CAPACITY IN CUBIC FEET OF GAS PER HOUR 










1 
1 u 


1 7"> 
I / Z 


760 
JOU 


67ft 
O / o 


1 7QO 


70QO 

zuvu 


4070 


6400 
04UU 


1 1 700 


77 100 

ZJ JUU 


4 1 ftOO 

4 1. oUU 


67 6(10 i 

/ OUU ; 


1 7 OOO 
1 J y UUU 


7^7 OOO 
ZJZ UUU 


700 OOO 
J J J UUU 


70 

ZU 


1 1 ft 
1 1 o 


747 
Z4 / 


466 
400 


OS" 7 

VJ 1 


1470 
14JU 


2760 


4400 


7780 


1 5 900 


28 700 : 


46 ^00 

40 JUU ; 


OS SOO 

yj JUU 


1 77 OOO 
1 ij UUU 


7 7s OOO 

Z / j UUU 


70 

JU 


V J 


1 QQ 

j vv 


7 7zt 

J /4 


7Aft 
/Oo 


1 1 ->o 
1 1 JU 


2220 


3530 


6250 


1 2 700 


23 000 


77 700 : 
J / JUU : 


7/C 7nn 
/O /UU 


1 7Q OOO 
1 JV UUU 


770 OOO 
ZZU UUU 


40 
4U 


ft 1 

o .1 


1 70 

J /u 


7">0 
JzU 


Dj / 


Qft s" 
Vo J 


1 900 


3020 


5350 


1 900 


1 9 700 ■ 


7 1 

j \ VUU 


/,c AOO 
Oj OUU 


1 1 Q OOO 
1 I V UUU 


i qq noo 

1 oV UUU 


SO 

JU 


77 

1 z 


1 S 1 

1 J 1 


">ft4 


Sft7 
Joj 


ft77 

O / J 


1 6K0 

1 u o u 


76ft0 


4740 

-r / *+U 


0660 
vuuu 


1 7 S()0 ; 


7ft 700 ■ 

z-O JUU 


Sft 70f1 

Jo zuu 


1 06 000 

1 UU UUU 


1 a 7 000 

1 U / UUU 


60 

OU 




1 77 

J J 1 


7^7 


^1 ft 

jZo 


7Q 1 


1 S70 
1. JZU 


7470 
Z-+J u 


47Q0 
4zvu 


ft7AO 
o / OU 


1 S ftOO 
1 J oUU 


ZD OUU i 


C7 7nn 
JZ /uu 


oc 7nn 

yj /UU 


1 ^7 OOO 
1 JZ UUU 


70 
/u 


OU 


1 76 
1 ZD 


777 
ZJ / 


/LftA 
450 


77ft 

/ Zo 


1400 


2230 


3950 


8050 


14 600 


7 7 600 \ 
ZJ OUU j 


A ft 'nOO 
4o JUU 


ft ft 1 OO 
oo 1 UU 


1 70 OOO 
1 J V UUU 


ftO 


^6 


1 1 7 


770 

zzu 


4s"7 
4JZ 


677 

D / / 


1300 


2080 


3670 


7490 


13 600 


77 OOO ' 

ZZ UUU ; 


Zl^ 1 oo 
4 J 1 UU 


ft 1 QOO 
o 1 VUU 


1 70 OOO 
1 JU UUU 


00 


S7 

JZ 


1 1 
J 1 U 


707 

ZU / 


474 
4Z4 


67 s" 

Dj j 


1220 


1950 


3450 


7030 


1 2 700 \ 


70 600 i 
ZU OUU i 


41 700 
4Z JUU 


76 oon 

/O VUU 


1 7 7 OOO 
1 ZZ UUU 


100 


50 


104 


1 95 


400 


600 


1 1 60 


1 840 


3260 


6640 


1 2 000 ^ 


1 9 500 1 


40 000 


72 600 


1 1 5 000 


1 7s 

1 ZJ 


44 


Q7 

vz 


1 77 


7 ^s" 

j j j 


^77 

J J Z 


1 070 
1 UZU 


1 670 

1 OJU 


7ftQO 
zo y\j 


SftOO 


1 600 
J U OUU 


1 7 ">00 i 


7^ ZlOO 
J J 4UU 


64 700 
04 JUU 


1 07 OOO 
1 UZ UUU 


1 SO 

I JU 


40 
*+u 


8 i 


1 S7 

I J / 


777 

j ZZ 


4ft 7 

4oZ 


928 


1480 


2610 


5330 


9650 


1 S 600 
1 J OUU 


77 1 00 
JZ 1 UU 


^ft 700 
Jo JUU 


07 700 
VZ JUU 


1 7S 
i / J 


77 


77 


1 44 


706 
ZVO 


i 447 
4 4 J 


854 


1 360 


241 


49 1 


8880 


1 A 400 

1 4 4UU ; 


7Q ^OO 
Zy JUU 


s7 600 
JJ OUU 


OA QOO 
54 VUU 


700 

ZUU 


74 


7 1 

/ J 


1 74 
1 J 4 


77s" 

Z / J 


417 
4 1 Z 


794 


1 270 


2240 


4560 


8260 \ 


l 7 inn \ 

\ J 4UU ; 


7 7 ^00 

Z / jUU 


40 OOO 
4V VUU 


70 OOO 
I J UUU 


250 


30 


63 


1 1 


244 


JUU 


704 


.1 1 20 


1980 


4050 


7320 


1 1 000 
i i yuu 


74 300 

Z4 JUU 


44 700 

ZUU 


70 000 

/ U UUU 


700 


77 

z / 


S7 

J / 


1 Oft 
1 Uo 


77 1 

ZZ 1. 


771 
jj !■ 


67ft 
o j o 


1 070 

J UZU 


1 ftOO 

I oUU 


7670 

JO / u 


6670 

OO JU 


1 700 
1 u / uu 


77 1 00 
ZZ 1 UU 


40 1 00 
tu 1 UU 


67 400 

OJ H-UU 


7 so 


7 S 

Z J 


S7 

J J 


QQ 

7 7 


">07 
^UJ 


70s" 

JUJ 


587 


935 


1650 


3370 


6100 


QftftO 
VooU 


70 700 
ZU JUU 


76 QOO 
JO VUU 


^ft 400 
J o 4UU 




ZJ 


4Q 


07 
JZ 


1 80 


7ft 7 

! ZO J 


546 


870 


1540 


1 3140 


5680 


1 00 


1 ft 000 
1 o VUU 


74 700 
Jt JUU 


S4 700 

J 1 ! JUU 


4S0 


zz 


46 


ft6 


1 77 


766 

ZOO 


512 


816 


1440 


I 2940 


5330 


ft670 


1 7 700 

1 / / UU 


77 700 
JZ zuu 


SO 000 
JU /UU 


500 


21 


43 


82 


168 


251 


484 


771 


1 360 


i 2780 


5030 


8150 


1 6 700 


30 400 


48 100 


sso 


70 


4 1 


7ft 

/ o 


1 so 

1 Jy 


770 

Z j y 


459 


732 


1290 


2640 


4780 


7740 


1 5 900 


7ft 000 

ZO /UU 


4S 700 


600 


1 9 


3Q 
j y 


74 


1 S7 

1 JZ 


77ft 

; ZZ O 


438 


699 


1240 


, 2520 


4560 


7 7 SO 

/ J o u 


1 S 7 00 

1 J JJU 


77 son 

Z / JUU 


43 600 

-tJ UUU 


6so 


1 ft 

J o 


7ft 

J) o 


71 


1 4S 


9 1 ft 
Z 1 o 


420 


669 


1180 


! 2410 


4360 


7070 

/ U / V) 


1 4 7 00 

1 H JUU 


76 400 

ZO HUU 


4 1 ftOO 

H 1. OUU 


700 


1 7 


j6 


6ft 


1 40 

1 *+U 


70Q 
ZU V 


403 


643 


1140 


2320 


4190 


67 QO 
O / y\) 


1 4 OOO 

1 4 UUU 


7S 700 

ZJ JUU 


40 1 00 

tu J UU 


750 


17 


35 


66 


135 


202 


389 


619 


1 090 


2230 


4040 


6540 


1 3 400 


24 400 


38 600 


800 


16 


34 


63 


130 


195 


375 " 


598 


1 060 


2160 


3900 


6320 


13 000 


23 600 


37 300 


850 


16 


33 


61 


126 


189 


363 


579 


1020 


i 2090 


3780 


6110 


12 600 


22 800 


36 100 


900 


15 


32 


59 


1.22 


183 


352 


561 


992 


| 2020 


3660 


5930 


12 200 


22 100 


35 000 


950 


15 


31 


58 


118 


178 


342 


545 


963 


! 1960 


3550 


5760 


11 800 


21 500 


34 000 


1000 


14 


30 


56 


115 


173 


333 


530 


937 


\ 1910 


3460 


5600 


1 1 500 


20 900 


33 100 


1100 


14 


28 


53 


109 


: 164 


316 


503 


890 


! 1810 


3280 


5320 ; 


10 900 


19 800 


31 400 


1200 


13 


27 


51 


1 04 


156 


301 


480 


849 


j 1730 


3130 | 


5070 


10 400 


1 8 900 


30 000 


1300 


12 


26 


49 


1.00 


150 


289 


460 


81.3 


j 1660 


3000 | 


4860 


9980 


18 100 


28 700 


1400 


12 


25 


47 


96 


144 


277 


442 


781 


! 1590 


2880 | 


4610 


9590 


1 7 400 


27 600 


1 500 


11 


24 


45 


93 


139 


267 


426 


752 


! 1530 


2780 


4500 


9240 


1 6 800 


26 600 


1600 


11 


23 


44 


89 


■ 134 


258 


411 


727 


\ 1480 


2680 | 


4340 


8920 


16 200 


25 600 


1 700 


11 


22 


42 


86 


130 


250 


398 


703 


! 1430 


2590 


4200 


8630 


15 700 


24 800 


1800 


10 


22 


41 


84 


126 


242 


386 


682 


! 1390 


2520 | 


4070 


8370 


1 5 200 


24 100 


1900 


10 


21 


40 


81 


122 


235 


375 


662 


: 1350 


2440 


3960 


8130 


14 800 


23 400 


2000 


NA 


20 


39 


79 


119 


229 


364 


644 


1310 


2380 


3850 ! 


7910 


14 400 


22 700 


For SI units: 1 inch- 25 mm, 1 foot = 304.8 mm, 


1 cubic foot 


per hour = 


0.0283 nrVhu 1 pou 


id-force per square inch 


= 6.8947 kPa, 1 inch water column 


= 0.249 kPa 



Notes: 

1 Table entries are rounded to 3 significant digits. 

2 NA means a flow of less than 10 ft 3 /h (0.283 nrVh). 



2013 CALIFORNIA PLUMBING CODE 



219 



FUEL GAS PIPING 



TABLE 1216.2(2) 




SCHEDULE 40 METALLIC PIPE [NFPA 54-12: TABLE 6.2(c)]* 




GAS: 


NATURAL 


INLET PRESSURE: 


LESS THAN 2 psi 


PRESSURE DROP: 


3.0 in. w.c. 


SPECIFIC GRAVITY: 


0.60 


INTENDED USE: INITIAL SUPPLY PRESSURE OF 8.0 IN. W.C. OR GREATER 



PIPE SIZE (inch) 



NOMINAL: 


</2 


% 


1 


VA 


1V 2 


2 


2V2 


3 


4 


ACTUAL ID: 


0.622 


0.824 


1.049 


1.380 


1.610 


2.067 


2.469 


3.068 


4.026 


LENGTH (feet) 






CAPACITY IN CUBIC FEET OF GAS PER HOUR 






1 () 


4 C A 

434 


A \ A 

949 


1787 


3669 


5497 


10 588 


16 875 


29 832 


4j 678 


20 


3 1 2 


03Z 


1228 


2522 


1778 


7977 


1 1 598 


20 503 


ji) 020 


i a 
3U 


OCA 
Z3U 


CO A 

3Z4 


QR6 

"OU 


9095 


3034 


5844 


91 1 4 


1 Z /I f c 

lb 46 3 


O /I 1 AT 

z4 1U/ 


\ a 
4U 


O 1 /I 

z 1 4 


A \ o 
44 o 


844 


1 733 


2597 


5001 


7971 


I 4 U9z 


OA AT) 
ZU 03Z 


50 




107 


748 


1 516 

1 J J u 


9107 

Z.J u^ 


4411 


7065 

/ UU J 


1 9 4RQ 
1 Z 4 J 


1 ZoO 


AO 
OU 


1 11 


3 0U 




1392 


2085 


40 1 6 


6401 


1 J j 1 O 


1 A CAO 

1 309 


"7 A 


1 3o 


1 1 1 

J J .1 


b~>A 


1 980 


1919 


1695 


5R8Q 

j 007 


1 A A 1 1 

I U 4 I J 


1 3 z4j> 


oU 


1 A H 

14 / 


3Uo 


580 


11 Q 1 
i i y i 


1 785 

1 / j 


1417 


547Q 


9uo3 


1/1 1 Q 1 

1 4 1 J 


9U 


1 1 


o o n 
Zo9 


544 

->*+- r 


1118 


1 675 


3225 


5140 


AAQ 7 

9Uo / 


17 1 A C 

13 jU3 


1 uu 


1 1 1 


071 


514 

J 1 4 


1 056 

1 U JO 


1 5R9 

1 3oZ 


1046 

J U~+U 


4856 

-+o JO 


R5R4 

Jo4 


1 9 568 

1 Z 3 O 


1 O c 

1 z3 


1 1 f 
1 16 


Z4z 


456 


936 


1402 


2700 


4303 


/0U0 


I 1 1 on 

II 139 


1 50 


1 A C 

1 U3 


"> 1 A 

z 1 9 


4 1 1 

4 J J 


848 


1 970 


9446 


18Q9 

JO J J 


oo9j 


1 A AOI 

1U U93 


1 H C 


A/^ 

9o 


zUz 


180 


780 


1 1 69 


2251 


3587 


oJ4z 


9zo3 


200 


90 


188 


151 

j> j j 


79n 


1 087 
j uo / 


90Q4 


1117 


C AAA 
390U 


0638 


7^n 


oU 


i aa 

J oo 


313 


641 


964 


1 856 


2958 


5299 


7^ 5 a 

/ O JO 


"> aa 
jOU 


72 


1 C 1 

13 1 


284 


" 583 


873 


168 1 


2680 


4 1 5k 


Am h 
by 5 I 


3 3U 


/CA 

OO 


1 39 


261 


536 


803 


1 547 


2465 


A 1 £.0 
4339 


A1 C7 
03 OZ 


400 


62 


129 


941 


4QQ 


747 


1 41Q 


2294 


/I A C C 

4U33 


393 / 


450 


CO 

3o 


1 2 1 




468 


701 
/ u 1 


1 150 


21 52 


O O A/l 

3804 


5570 


3UU 


cc 


1 1 zl 

1 1 4 


215 


442 


669 


1 275 


2033 


1 ^04 

3 3 y 4 


^7 A7 
3ZOZ 


CCA 

33U 


3z 


1 A A 

1 U9 


204 


420 


629 


1211 


193 1 


j4 1 3 


I A A "7 

499 / 


oUO 


C A 

30 


T A \ 
1 U4 


195 


400 


600 


1156 


1842 


c/ 
3 ZOO 


4 lb 1 


ojU 


A H 
4 / 


99 


187 


384 


575 


1107 


1764 


J 1 1 6 


1 c / c 

4303 


7f|A 

/ uu 


/I A 

46 


oc 
93 


179 


368 


552 


1063 


1 695 


Z996 


A 1. OA 

43oo 


/ 3U 




Q7 

VZ 


173 


355 


532 


1024 


1632 


7 QOA 
Z00O 


zi77<; 

4ZZ3 


800 


42 


89 


167 


343 


514 


989 


1576 


2787 


4080 


850 


41 


86 


162 


332 


497 


957 


1526 


2697 


3949 


900 


40 


83 


157 


322 


482 


928 


1479 


2615 


3828 


950 


39 


81 


152 


312 


468 


901 


1436 


2539 


3718 


1000 


38 


79 


148 


304 


455 


877 


1397 


2470 


3616 


1100 


36 


75 


141 


289 


432 


833 


1327 


2346 


3435 


1200 


34 


71 


134 


275 


412 


794 


1266 


2238 


3277 


1300 


33 


68 


128 


264 


395 


761 


121.2 


2143 


3138 


1400 


31 


65 


123 


253 


379 


731 


1165 


2059 


3014 


1500 


30 


63 


119 


244 


366 


704 


1122 


1 983 


2904 


1600 


29 




115 


236 


353'" 


680 


1083 


1915 


2804 


1700 


28 


59 


111 


228 


342 


658 


1048 


1854 


2714 


1800 


27 


57 


108 


221 


331 


638 


1017 


1797 


2631 


1900 


27 


56 


105 


215 


322 


619 


987 


1745 


2555 


2000 


26 


54 


102 


209 


313 


602 


960 


1698 


2485 



For SI units: I inch = 25 mm, 1 foot = 304.8 mm, I cubic foot per hour = 0.0283 m /h, 1 pound-force per square inch = 6.8947 kPa, 1 inch water column = 0.249 k.Pa 
* Table entries are rounded to 3 significant digits. 



220 



2013 CALIFORNIA PLUMBING CODE 



FUEL GAS PIPING 



TABLE 1216.2(3) 

SCHEDULE 40 METALLIC PIPE [NFPA 54-12: TABLE 6.2(d)]* 

GAS: NATURAL 
INLET PRESSURE: LESS THAN 2 psi 
PRESSURE DROP: 6.0 in. w.c. 
SPECIFIC GRAVITY: 0.60 
INTENDED USE: INITIAL SUPPLY PRESSURE OF 11.0 IN. W.C. OR GREATER 



PIPE SIZE (inch) 



NOMINAL: 


y 2 




1 




1 1 /4 


1V 2 


2 


2 1 / 2 


3 


4 


ACTUAL ID: 


0.622 


0.824 


1.049 




1.380 


1.610 


2.067 


2.469 


3.068 


4.026 


LENGTH 

(feet) 








CAPACITY IN CUBIC FEET OF GAS PER HOUR 






1 A 
1 


/ /' A 

ooU 


1 380 


2600 




5338 


7999 


1 5 405 


24 553 


A1 A A C 

4 J 4U5 


/ ' c c 1 
OO JJ 1 


O A 

ZU 


A Z A 

454 


949 


1 787 




3669 


5497 


10 588 


16 875 


on 000 

29 832 


A1 CIO 

4J lb 


~> A 
OO 


J 64 


762 


1435 




2946 


4415 


8502 


13 551 


O ~> AC/ 


"> c a~7c 


^tU 


1 1 

J l.z 


OjZ 


1 11$. 

IZZo 




2522 


3778 


7277 


1 1 598 


ZU JUo 


jU UZU 


50 


276 


578 


1089 




2235 


3349 


6449 


10 279 


18 172 


26 606 


oU 


OCA 


C O A 

JZ4 


no/ 

986 




2025 


3034 


5844 


9314 


1 4o j 


O A 1 A"7 

Z4 IU/ 


/u 


Z30 


/I O O 

48z 


A AT 

907 




1863 


2791 


5376 


8568 


1 C \ AH 

1 j 14/ 


00 1 no 

11 1 lb 


OA 

SO 


o 1 1 

214 


A AO 

448 


O A A 

844 




1733 


2597 


5001 


7971 


1 A AAO 

1 4 \)yl 


ZU ojz 


on 


ZU 1 




1Q1 

1 J L 




1626 


2437 


4693 


7479 


1 ^ 111 
1 J zzz 


1 Q 


1 AA 
100 


190 


397 


748 




1536 


2302 


4433 


7065 


1 2 489 


1 8 286 


] 25 


168 


352 


663 




1361 


2040 


3928 


626 1 


1 1 069 


16 207 


150 


1 53 


3 1 9 


601 




1234 


1848 


3559 


5673 


10 029 


14 684 


1 75 


1 A A 

1 40 


lyj 


553 




1135 


1700 


3275 


5219 


9227 


1 3 509 


ZUU 


1 J 1 


Z 15 


C 1 /I 

D J 4 




1056 


1582 


3046 


4856 


jo4 


1 1 CZ-vQ 
1 Z JDO 


250 


1 1 6 


Z4z 


A Z £ 

456 




936 


1402 


2700 


4303 


7608 


11 US' 


300 


105 


2 1 9 


413 




848 


1270 


2446 


3899 


689j 


1 A AA"> 

1 09 j 


1 CA 

3^0 


96 


202 


380 




780 


1 169 


2251 


3587 


/ 1 A O 

oJ4z 


AO O C 

yZbj 


400 


90 


188 


353 




726 


1087 


2094 


3337 


5900 


86 3 b 


A C.A 
4MJ 


64 


1 /o 


110 




681 


1020 


1965 


3131 


JJJJ 


1 U J 


500 


80 


1 66 


313 




643 


964 


1 856 


2958 


5229 


7656 


550 


76 


158 


297 




611 


915 


" 1 762 


2809 


4966 


7271 


600 


72 


1 5 1 


284 




583 


873 


1681 


2680 


4738 


6937 


650 


69 


1 44 


272 




558 


836 


1610 


2566 


4537 


6643 


"7 A A 
/UU 


OO 


i in 
1 Sy 


O/C 1 

Zo 1 




536 


803 


1547 


2465 


A 1 CO 


£1 CO 


750 


64 


134 


252 




516 


774 


J 490 


2375 


4199 


6148 


800 


62 


129 


243 




499 


747 


1439 


2294 


4055 


5937 


850 


60 


125 


235 




483 


723 


1393 


2220 


3924 


5745 


900 


58 


121 


228 




468 


701 


1350 


2152 


3804 


5570 


950 


56 


1 18 


221 




454 


681 


1311 


2090 


3695 


5410 


1000 


55 


114 


215 




442 


662 


1275 


2033 


3594 


5262 


1.100 


52 


109 


204 




420 


629 


1211 " 


193 1 


3413 


4997 


1 200 


50 


104 


195 




400 


600 


1156 


1842 


3256 


4767 


1300 


47 


99 


187 




384 


575 


1107 


1764 


3118 


4565 


1400 


46 


95 


179 




368 


552 


1063 


1695 


2996 


4386 


1500 


44 


92 


173 




355 


532 


1024 


1632 


2886 


4225 


1600 


42 ~ 


89 


1 67 




343 


514 


989 


1576 


2787 


4080 


1700 


41 


86 


162 




332 


497 


957 


1 526 


2697 


3949 


1800 


40 


83 


157 




322 


482 


928 


1479 


2615 


3828 


1900 


39 


81 


152 




312 


468 


901 


1436 


2539 


3718 


2000 


38 


79 


148 




304 


455 


877 


1397 


2470 


3616 



For SI units: I inch = 25 mm, 1 foot = 304.8 mm, 1 cubic foot per hour = 0.0283 nrVh, 1 pound-force per square inch = 6.8947 kPa, 1 inch water column = 0.249 kPa 
* Table entries are rounded to 3 significant digits. 



2013 CALIFORNIA PLUMBING CODE 



221 



FUEL GAS PIPING 



TABLE 1216.2(4) 

SCHEDULE 40 METALLIC PIPE [NFPA 54-12: TABLE 6.2(e)]* 

GAS: NATURAL 
INLET PRESSURE: 2.0 psi 
PRESSURE DROP: 1.0 psi 
SPECIFIC GRAVITY: 0.60 



PIPE SIZE (inch) 



NOMINAL: 




% 


1 


1 1 /4 


Vh 


2 


2 1 /2 


3 


4 


ACTUAL ID: 


0.622 


0.824 


1.049 


1.380 


1.610 


2.067 


2.469 


3.068 


4.026 


LENGTH 
(feet) 






CAPACITY IN CUBIC FEET OF GAS PER HOUR 






I U 


1 j 1 u 


7nzin 

JU4U 


5560 


1 1 400 


17 100 


32 900 


52 500 


07 Qnn 
yz ouu 


i qo nnn 
1 o J UUU 


ZU 


1 U / U 


7 i ^n 
Z 1 jU 


3930 


8070 


12 100 


23 300 


37 100 


C C AAA 

bj bUU 


1 7/i nnn 
1 o4 UUU 


JU 


Q AO 

oby 


i 7An 
J /bU 


3210 


6590 


9880 


19 000 


30 300 


dd bUU 


i no nnn 
1 U9 UUU 


/in 

4U 


idd 


i ^7n 

J JZU 


2780 


57 10 


8550 


16 500 


26 300 


a A a nn 

4b 4UU 


qa 7nn 

y4 /uu 


^n 
jU 


A77 

b / j 


i i An 
l jbu 


2490 


5110 


7650 


14 700 


23 500 


a i ^nn 

4 1 jUU 


qa 7nn 
o4 /uu 


/ a 
bU 


61 D 


1 1 A A 

J z4U 


2270 


46b() 


6980 


13 500 


2 1 400 


~» 1 AAA 

7 / 9UU 


/ / jUU 


/U 


^ AO 

j by 


i i ^n 

1 I 7U 


2100 


4320 


6470 


12 500 


19 900 


7 ^ i nn 

DD I UU 


7 1 Ann 
/ 1 bUU 


oU 


^17 

JJZ 


i n^n 

1 UoU 


1970 


4040 


6050 


1 1 700 


18 600 


77 snn 
dZ oUU 


A 7 AAA 

b / UUU 


on 
yu 


jUZ 


i n i n 

1 U 1 u 


1850 


3810 


5700 


1 1 000 


17 500 


in onn 
ju yuu 


ai i nn 
b j i uu 


i nn 
1 uu 


40Z 


07zt 
/74 


1710 


35 1 1 1 


5260 


10 100 


16 100 


7^ ^nn 

Z6 JUU 


;o inn 

Jo ZUU 


1 25 


414 


O 1 s 
6 DO 


1530 


3140 


4700 


9060 


14 400 


25 500 


52 100 


i <;n 
1 jU 




HZ. 1 
ID I 


1370 


2820 


4220 


8130 


1 3 000 


n nnn 
zz yUU 


A Hf\(\ 

4b /UU 


1 ID 


T.AA 
344 


byj 


1270 


2601 


3910 


7530 


12 000 


7 i 7nn 
z l zUU 


a 7 inn 
47 JUU 


inn 
ZUU 


7 1 y 


A47 

b4z 


1 1 70 


2410 


3610 


6960 


11 100 


i q Ann 
19 bUU 


/in nnn 
4U UUU 


Z jU 


77Q 

Z /V 


<:qi 


1040 


2140 


3210 


6180 


9850 


i 7 a nn 
1 / 4UU 


i z. ?nn 
jj jUU 


inn 
7UU 


7^1 

ZD 3 


^79 

jZo 


945 


1940 


2910 


5600 


8920 


i ^ Qnn 

J J oUU 


17 7nn 

DZ ZUU 


i <;n 
J jU 


Z JZ 


AQ A 

4ob 


869 


1790 


2670 


5150 


8210 


1 a ^nn 

J 4 jUU 


70 Ann 
zy buu 


4UU 


7 1 A 
Z 1 b 


ZK7 
4jZ 


809 


1660 


2490 


4790 


7640 


1 7 ^nn 

1 D D UU 


77 ^nn 

z / jUU 


a ^n 

4jU 


7H1 


A1A 
4Z4 


759 


1560 


2330 


4500 


7170 


i 7 7nn 
1Z /UU 


1C QAA 

Zd oUU 


jUU 


i yz 


An i 

4U.I. 


717 


1470 


2210 


4250 


6770 


i 7 nnn 
!Z UUU 


7/i /inn 
Z4 4UU 


3 jU 


1 Q1 

1 oz 


JO J. 


68 1 


1400 


2090 


4030 


6430 


1 T A(\(\ 

1 1 4UU 


1 "> 1AA 

Zd ZUU 


Ann 


1 7/1 
1 / 4 


DOD 


650 


1330 


2000 


3850 


6130 


1 U oUU 


77 i nn 

ZZ J UU 


A^n 


1 AA 


7zl£ 
J4o 


622 


1280 


1910 


3680 


5870 


i n zinn 

1 U 4UU 


7 i 7nn 

Z I ZUU 


/UU 


1 AO 




598 


1230 


1840 


3540 


5640 


Q07n 

yy / u 


ZU 7UU 


/ JU 


1 ^Zt 
1 74 


177 

DAL 


576 


1180 


1770 


3410 


5440 


oa i n 
yo i u 


i o Anfi 
j y ouvj 


800 


149 


31 1 


556 


1140 


1710 


3290 


5250 


9280 


1 8 900 


850 


144 


301 


538 


1 100 


1650 


3190 


5080 


8980 


1 8 300 


900 


139 


292 


522 


.1070 


1600 


3090 


4930 


8710 


1 7 800 


950 


135 


283 


507 


1040 


1560 


3000 


4780 


8460 


17 200 


1000 


132 


275 


493 


1010 


1520 


2920 


4650 


8220 


16 800 


1100 


125 


262 


468 


960 


1440 


2770 


4420 


7810 


15 900 


1200 


119 


250 


446 


917 


1.370 


2640 


4220 


7450 


1 5 200 


1300 


1 14 


239 


427 


878 


1320 


2530 


4040 


7140 


14 600 


1400 


110 


230 


411 


843 


1260 


2430 


3880 


6860 


14 000 


1500 


106 


221 


396 


XI2 


1220 


2340 


3740 


6600 


13 500 


1 600 


102 


214 


382 


784 


1180 


2260" 


3610 


'6380 


13 000 


1700 


99 


207 


370 


759 


1 140 


2190 


3490 


6170 


12 600 


1800 


96 


200 


358 


736 


1100 


2120 


3390 


5980 


12 200 


1 900 


93 


195 


348 


715 


1070 


2060 


3290 


5810 


1 1 900 


2000 


91 


189 


339 


695 


1040 


2010 


3200 


5650 


1 1 500 



For SI units: I inch = 25 mm, 1 foot ~ 304.8 mm, I cubic foot per hour = 0.0283 m7h, 1 pound-force per square inch = 6.8947 kPa 
Table entries are rounded to 3 significant digits. 



222 



2013 CALIFORNIA PLUMBING CODE 



FUEL GAS PIPING 



TABLE 1216.2(5) 

SCHEDULE 40 METALLIC PIPE [NFPA 54-12: TABLE 6.2(f)]* 

GAS: NATURAL 
INLET PRESSURE: 3.0 pss 
PRESSURE DROP: 2.0 psi 
SPECIFIC GRAVITY: 0.60 

PIPE SIZE (inch) 



NOMINAL: 


1 /2 


3 /4 


1 




VA 


2 


2 1 /2 


3 


4 


ACTUAL ID: 


0.622 


0.824 


1.049 


1.380 


1.610 


2.067 


2.469 


3.068 


4.026 


LENGTH 
(feet) 






CAPACITY IN CUBIC FEET OF GAS PER HOUR 








10 


2350 


4920 


9270 


1 9 000 


28 500 


54 900 


87 500 


155 000 


316 000 


20 


1 620 


3380 


oJ /U 


i ~> i An 
J j 1 UU 


1 V oUU 


") n iaa 
S 1 /UU 


60 1 00 


1 06 000 


2 1 7 000 


30 


1300 


2720 


^ 1 1 n 

J 1 1 u 


1 Pi ^PiPi 
1U JUU 


1 ^ 7PlPl 
1J /UU 


in inn 

JU JUU 


48 300 


85 400 


1 74 000 


40 


11 10 


2320 


/11QPI 




1 1 <\PIPI 
J j JUU 


OPiPi 

Zj VUU 


41 300 


73 100 


149 000 


50 


985 


2060 


IQQPi 


7Q7Pi 

ly /U 


1 1 QPiPi 
J J VUU 


oi aaa 
Zj> uuu 


36 600 


64 800 


1 32 000 


60 r 


892 


1 870 


3520 


7220 


10 800 


20 800 


33 200 


58 700 


120 000 


70 


821 


1720 


IOIPi 


AAZLPl 
OO^+U 


QQ^Pi 

77JU 


1 O OPlPl 
1 / zuu 


30 500 


54 000 


1 1 000 


80 


764 


1600 


IPi 1 Pi 
JU 1 U 


A 1 QPl 
1 oU 


QO^Pl 
VZuU 


1 7 QPiPi 
1 / oUU 


28 400 


50 200 


102 000 


90 


717 


1500 


OQOPi 
ZoZU 


^QPiPi 
JOUU 


Q/^CPl 
OOoU 


1 A 7PlPl 
JO /UU 


26 700 


47 100 


96 100 


100 


677 


1420 


O A7Pl 
ZD /U 


\A 7Pi 

J4 /U 


£OPlPl 
oZUU 


1 J oUU 


25 200 


44 500 


90 800 


125 


600 


1250 


2360 


4850 


7270 


1 4 000 


22 300 


W 500 


80 500 


150 


544 


1 140 


O 1 A A 

2 1 4U 


A A AA 

44UU 


oj9U 


1 Z /UU 


20 200 


35 700 


72 900 


175 


500 


1050 


1 G7Pl 

J y /U 


a a a n 
4U4U 


oUoU 


1 1 7AA 
J 1 /UU 


1 8 600 


32 900 


67 100 


200 


465 


973 


1 Q1A 

1 coU 


1 7/iA 

3 /oU 


<Z£A Pi 
J04U 


1 A QAA 
I U VUU 


1 7 300 


30 600 


62 400 


250 


412 


862 


I OZU 


inn 


^PiPlPl 

jUUU 


voZU 


15 300 


27 100 


55 300 


300 ; 


374 


781 


1470 


3020 


4530 


8720 


13 900 


24 600 


50 1 00 


350 


344 


719 


1 JjU 


Z /bU 


A 1 1A 
4 1 /U 


O A O A 

mJzU 


12 800 


22 600 


46 100 


400 


320 


669 


1ZOU 


^OPl 

z j y\) 


1Q7PI 
JO /U 


7/lAPl 

/<4ou 


1 1 900 


21 000 


42 900 


450 


300 


627 


1 1 QPi 
1 1 oU 


O/l IPi 

Z4jU 


1^/1 Pi 
jo4U 


7PlPlPl 

/uuu 


1 1 200 


19 700 


40 200 


500 


283 


593 


1 1 OA 
I 1 ZU 


OOQA 

zzyu 


1/1 in 
j4jU 


A A. 1 A 
00 I U 


10 500 


1 8 600 


38 000 


550 


269 


563 


1060 


2 1 80 


3260 


6280 


10 000 


17 700 


36 1 00 


600 


257 


537 


1 A 1 A 

1. 1. 


zU&U 


3 1 1 


5990 


9550 


1 6 900 


34 400 


650 


246 


514 


969 


1990 


2980 


5740 


9150 


16 200 


33 000 


700 


236 


494 


931 


1910 


2860 


5510 


8790 


15 500 


3 1 700 


750 


228 


476 


897 


1840 


2760 


5310 


8470 


1 5 000 


30 500 


800 


"'220 


460 


866 


1780 


2660 


5130 


8180 


14 500 


29 500 


850 


213 


445 


838 


1720 


2580 


4960 


7910 


14 000 


28 500 


900 


206 


431 


812 


1670 


2500 


4810 


7670 


1 3 600 


27 700 


950 


200 


419 


789 


1620 


2430 


4670 


7450 


1 3 200 


26 900 


1000 


195 


407 




1580 


23N) 


4550 


7240 


12 800 


26 1 00 


1100 


185 


387 


729 


1500 


2240 


4320 


6890 


12200 


24 800 


1200 


177 


369 


695 


1430 


2140 


4120 


6570 


1 1 600 


23 700 


1300 


169 


353 


666 


1370 


2050 


3940 


6290 


11 100 


22 700 


1400 


162 


340 


640 


1310 


1970 


3790 


6040 


1 700 


21 800 


1500 


156 


327 


616 


1270 


1900 


3650 


5820 


10 300 


2 1 000 


1600 


151 


316 


595 


1220 


1830 


3530 


5620 


10 000 


20 300 


1700 


146 


306 


576 


1180 


1770 


3410 


5440 


96 1 


19 600 


1800 | 


142 


296 


558 


1150 


1720 


3310 


5270 


9320 


19 000 


1900 


138 


288 


542 


1 110 


1670 


3210 


5120 


9050 


18 400 


2000 


134 


280 


527 


1080 


1620 


3120 


4980 


8800 


18 000 



For SI. units: 1 inch = 25 mm, 1 foot = 304.8 mm, 1 cubic foot per hour = 0.0283 nr/h, 1 pound-force per square inch = 6.8947 kPa 
* Table entries are rounded to 3 significant digits. 



2013 CALIFORNIA PLUMBING CODE 



223 



FUEL GAS PIPING 



TABLE 1216.2(6) 

SCHEDULE 40 METALLIC PIPE [NFPA 54-12: TABLE 6.2(g)]* 





GAS: 


NATURAL 




INLET PRESSURE: 


5.0 psi 




PRESSURE DROP: 


3.5 psi 




SPECIFIC GRAVITY: 


0.60 



PIPE SIZE (inch) 



NOMINAL: 


V?. 


3 /4 


1 


VA 


V/z 


2 


2 1 / 2 


3 


4 


AO 1 UAL IU. 


0.622 


0.824 


1.049 


1.380 


1.610 


2.067 


2.469 


3.068 


4.026 


LENGTH 

(feet) 






CAPACITY IN CUBIC FEET OF GAS PER HOUR 






10 


3190 


6430 


1 1 800 


24 200 


36 200 


69 700 


111 000 


196 000 


401 000 


20 


2250 


4550 


8320 


17 100 


25 600 


49 300 


78 600 


139 000 


283 000 


30 


1840 


3720 


6790 


14 000 


20 900 


40 300 


64 200 


113 000 


231 000 


40 


1 590 


3220 


5880 


12 100 


18 100 


34 900 


55 600 


98 200 


200 000 


50 


1430 


2880 


5260 


1 800 


16 200 


3 1 200 


49 700 


87 900 


179 000 


60 


1300 


2630 


4800 


9860 


14 800 


28 500 


45 400 


80 200 


164 000 


70 


1 200 


2430 


4450 


9130 


1 3 700 


26 400 


42 000 


74 300 


151 000 


80 


1 150 


2330 


4260 


8540 


12 800 


24 700 


39 300 


69 500 


142 000 


90 


1 060 


2150 


3920 


8050 


12 100 


23 200 


37 000 


65 500 


134 000 


100 


979 


1980 


3620 


7430 


11 100 


21 400 


34 200 


60 400 


1 23 000 


125 


876 


1770 


3240 


6640 


9950 


19 200 


30 600 


54 000 


110 000 


150 


786 


1590 


2910 


5960 


8940 


17 200 


27 400 


48 500 


98 900 


175 


728 


1470 


2690 


5520 


8270 


15 900 


25 400 


44 900 


91 600 


200 


673 


1360 


2490 


5100 


7650 


14 700 


23 500 


41 500 


84 700 


250 


558 


1170 


2200 


4510 


6760 


13 000 


20 800 


36 700 


74 900 


300 


506 


1 060 


1990 


" 4090 


6130 


1 1 800 


1 8 800 


33 300 


67 800 


350 


465 


973 


1830 


3760 


5640 


10 900 


17 300 


30 600 


62 400 


400 


433 


905 


1710 


3500 


5250 


10 100 


16 100 


28 500 


58 100 


450 


406 


849 


1600 


3290 


4920 


9480 


15 100 


26 700 


54 500 


500 


384 


802 


1510 


3100 


4650 


8950 


14 300 


25 200 


5 1 500 


550 


364 


762 


1440 


2950 


4420 


8500 


1 3 600 


24 000 


48 900 


600 


348 


727 


1370 


2810 


4210 


8110 


12 900 


22 900 


46 600 


650 


333 


696 


1310 


2690 


4030 


7770 


12 400 


21 900 


44 600 


700 


320 


669 


1260 


2590 


3880 


7460 


1 1 900 


21 000 


42 900 


750 


308 


644 


1210 


2490 


3730 


7190 


11 500 


20 300 


41 300 


800 


298 


622 


1 1 70 


241 


3610 


6940 


11 100 


19 600 


39 900 


850 


288 


602 


1 130 


2330 


3490 


6720 


10 700 


18 900 


38 600 


900 


279 


584 


1100 


2260 


3380 


6520 


10 400 


18 400 


37 400 


950 


271 


567 


.1070 


2190 


3290 


6330 


10 100 


17 800 


36 400 


1000 


264 


551 


1 040 


2130 


3200 


6150 


9810 


17 300 


35 400 


1100 


250 


524 


" 987 


2030 


3030 


5840 


9320 


16 500 


33 600 


1200 


239 


500 


941 


1930 


2900 


5580 


8890 


15 700 


32 000 


1300 


229 


478 


901 


1850 


2770 


5340 


8510 


15 000 


30 700 


1400 


220 


460 


866 


1780 


2660 


5130 


8180 


14 500 


29 500 


1500 


212 


443 


834 


1710 


2570 


4940 


7880 


13 900 


28 400 


1 600 


205 


428 


806 


1650 


2480 


4770 


7610 


13 400 


27 400 


1700 


198 


414 


780 


1600 


2400 


4620 


7360 


13 000 


26 500 


1800 


192 


401 


756 


1550 


2330 


4480 


7140 


12 600 


25 700 


1900 


186 


390 


734 


1510 


2260 


4350 


6930 


12 300 


25 000 


2000 


181 


379 


714 


1470 


2200 


4230 


6740 


11 900 


24 300 



For SI units: I inch = 25 mm, 1 foot = 304,8 ram, 1 cubic foot per hour = 0.0283 nr/h, 1 pound-force per square inch = 6.8947 k.Pa 



* Table entries are rounded to 3 significant digits. 



224 



2013 CALIFORNIA PLUMBING CODE 



FUEL GAS PSPSNG 



TABLE 1216.2(7) 

SEMI-RIGID COPPER TUBING [NFPA 54-1 2: TABLE 6.2(h)] 1 ' 2 

GAS: NATURAL 
INLET PRESSURE: LESS THAN 2 psi 
PRESSURE DROP: 0.3 in. w.c. 
SPECIFIC GRAVITY:! 0.60 



TUBE SIZE (inch) 



K & L" 

NOMINAL: 

ACR: 


/4 


/8 


y 2 


5 / a 


3/4 


1 


VA 


I /2 


o 
c. 


% 


y 2 


% 


3 /4 


7 /s 


Vk 






- 


OUTSIDE: 


0.375 


0.500 


0.625 


0.750 


0.875 


1.125 


1.375 


1.625 


2.125 


INSIDE: 3 


0.305 


0.402 


0.527 


0.652 




0.745 


0.995 


1.245 


1.481 


1.959 


LENGTH (feet) 






CAPACITY IN CUBIC FEET OF GAS PER HOUR 






10 


20 


42 


85 


148 


210 


448 


806 


I 270 


2650 


20 


14 


29 


58 


102 


144 


308 


554 


873 


1820 


30 


11 


23 


47 


82 


1 16 


247 


445 


70 1 


1460 


40 


10 


20 


40 


70 


99 


21 1 


381 


600 


1250 


50 


NA 


17 


i^ 

J 5 


OZ 


oo 


1 S7 
1 O / 


117 


532 


1 J 1 


60 


NA 


16 


32 


56 


79 


1 70 


306 


' ' 482 


1000 


70 


NA 


14 


29 


52 


73 


1 56 


281 


443 


924 


80 


NA 


13 


27 


48 


68 


1 45 


262 


413 


859 


90 


NA 


13 


26 


45 


64 


1 36 


245 


387 


806 


100 


NA 


12 


Id 


Al 


ou 


1 7Q 
J zv 


91? 

ZJZ 


366 


761 






II 


22 


38 


53 


1 14 


206 


324 


675 


150 


NA 


10 


20 


34 


48 


103 


1 86 


294 


612 


175 


NA 


NA 


18 


31 


45 


95 


1 7 1 


270 


563 


200 


NA 


NA 


17 


29 


41 


89 


1 59 


25 1 


523 


250 


NA 


NA 


i j 


zD 


17 


7<i 


1 A 1 


223 


464 


300 


NA 


NA 


13 


23 


33 


71 


128 


202 '' ' 


420 


350 


NA 


NA 


12 


22 


31 


65 


1 18 


1 86 


387 


400 


NA 


NA 


1 1 


20 


28 


61 


1 1 


173 


360 


450 


NA 


NA 




19 


27 


57 


103 


162 


338 


500 


NA 


NA 


10 


18 


25 


54 


97 


153 


319 


550 ~ 


NA 


NA 


NA 


17 


24 


51 


92 


145 


303 


600 


NA 


NA 


NA 


16 


23 


49 


88 


139 


289 


650 


NA 


NA 


NA 


15 


22 


47 


84 


133 


277 


700 


NA 


NA 


NA 


15 


21 


45 


81 


128 


266 


750 


NA 


NA 


NA 


14 


20 


43 


78 


123 


256 


800 


NA 


NA 


NA 


14 


" 20 


" 42 




119 


247 


850 


NA 


NA 


NA 


.13 


19 


40 


73 


115 


239 


900 


NA 


NA 


NA 


13 


18 


39 


71 


111 


232 


950 


NA 


NA 


NA 


13 


18 


38 


69 


108 


225 


1000 


NA 


NA 


NA 


12 


17 


37 


67 


105 


219 


MOO 


" NA 


NA 


NA 


12 


16 


35 


63 


100 


208 


1200 


NA 


NA 


NA 


11 


16 


34 


60 


95 


199 


1300 


NA 


NA 


NA 




15 


32 


58 


91 


190 


1400 


NA 


NA 


NA 


10 


14 


31 


56 


88 


183 


1500 


NA 


NA 


NA 


NA 


14 


30 


54 


84 


176 


1600 


NA " 


NA 


~ NA 


" NA 


13 


29 


52 


82 


170 


1700 


NA 


NA 


NA 


NA 


13 


28 


50 


79 


164 


1800 


NA 


NA 


NA 


NA 


13 


27 


49 


77 


159 


1900 


NA 


NA 


NA 


NA 


12 


26 


47 


74 


155 


2000 


NA 


NA 


NA 


NA 


12 


25 


46 


72 


151 



For SI units: 1 inch - 25 mm. 1 foot . = 304.8 mm, J cubic foot per hour = 0.0283 m7h, 1 pound-force per square inch ^ 6.S947 kPa, 1 inch water column = 0.249 k'Pa 
Notes: 

1 Table entries are rounded to 3 significant digits. 

2 NA means a flow of less than 10 ftVh (0.283 m Vh). 

J Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products. 



2013 CALIFORNIA PLUMBING CODE 



225 



FUEL GAS PIPING 



TABLE 1216.2(8) 

SEMI-RIGID COPPER TUBING [NFPA 54-12: TABLE 6.2(i)] 1 - 2 

GAS: ! NATURAL 
INLET PRESSURE: LESS THAN 2 psi 
PRESSURE DROP: 0.5 in. w.c. 
SPECIFIC GRAVITY: 0.60 



TUBE SIZE (inch) 



I K&L: 


1 A 


% 


y 2 


% 


3 /4 


1 




! iVa 


NOMINAL: ! 


















ACR: 


% 




% 


3 A 


7 /8 


1% 


1% 




OUTSIDE: 


0.375 


0.500 




0.625 


0.750 


0.875 


1.125 


1.375 


| 1.625 


INSIDE: 3 


0.305 


0.402 


0.527 


0.652 




0.745 


0.995 


1.245 


1.481 



LENGTH (feet) CAPACITY IN CUBIC